Merge branch 'master' into feature_support_top_bottom_speed

CMakeLists.txt

@@ -22,6 +22,9 @@ set(CURA_BUILDTYPE "" CACHE STRING "Build type of Cura, eg. 'PPA'")
 configure_file(${CMAKE_SOURCE_DIR}/cura.desktop.in ${CMAKE_BINARY_DIR}/cura.desktop @ONLY)
 configure_file(cura/CuraVersion.py.in CuraVersion.py @ONLY)
 
+if(NOT ${URANIUM_DIR} STREQUAL "")
+    set(CMAKE_MODULE_PATH "${URANIUM_DIR}/cmake")
+endif()
 if(NOT ${URANIUM_SCRIPTS_DIR} STREQUAL "")
     list(APPEND CMAKE_MODULE_PATH ${URANIUM_DIR}/cmake)
     include(UraniumTranslationTools)
@@ -64,5 +67,3 @@ else()
     install(FILES ${CMAKE_BINARY_DIR}/CuraVersion.py
             DESTINATION lib/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/site-packages/cura)
 endif()
-
-include(CPackConfig.cmake)

CPackConfig.cmake

@@ -1,16 +0,0 @@
-set(CPACK_PACKAGE_VENDOR "Ultimaker B.V.")
-set(CPACK_PACKAGE_CONTACT "Arjen Hiemstra <a.hiemstra@ultimaker.com>")
-set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Cura application to drive the CuraEngine")
-set(CPACK_PACKAGE_VERSION_MAJOR 15)
-set(CPACK_PACKAGE_VERSION_MINOR 05)
-set(CPACK_PACKAGE_VERSION_PATCH 90)
-set(CPACK_PACKAGE_VERSION_REVISION 1)
-set(CPACK_GENERATOR "DEB")
-
-set(DEB_DEPENDS
-    "uranium (>= 15.05.93)"
-)
-string(REPLACE ";" ", " DEB_DEPENDS "${DEB_DEPENDS}")
-set(CPACK_DEBIAN_PACKAGE_DEPENDS ${DEB_DEPENDS})
-
-include(CPack)

cura/Arrange.py

@@ -0,0 +1,188 @@
+from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
+from UM.Logger import Logger
+from UM.Math.Vector import Vector
+from cura.ShapeArray import ShapeArray
+from cura import ZOffsetDecorator
+
+from collections import namedtuple
+
+import numpy
+import copy
+
+
+##  Return object for  bestSpot
+LocationSuggestion = namedtuple("LocationSuggestion", ["x", "y", "penalty_points", "priority"])
+
+
+##  The Arrange classed is used together with ShapeArray. Use it to find
+#   good locations for objects that you try to put on a build place.
+#   Different priority schemes can be defined so it alters the behavior while using
+#   the same logic.
+class Arrange:
+    build_volume = None
+
+    def __init__(self, x, y, offset_x, offset_y, scale= 1.0):
+        self.shape = (y, x)
+        self._priority = numpy.zeros((x, y), dtype=numpy.int32)
+        self._priority_unique_values = []
+        self._occupied = numpy.zeros((x, y), dtype=numpy.int32)
+        self._scale = scale  # convert input coordinates to arrange coordinates
+        self._offset_x = offset_x
+        self._offset_y = offset_y
+        self._last_priority = 0
+
+    ##  Helper to create an Arranger instance
+    #
+    #   Either fill in scene_root and create will find all sliceable nodes by itself,
+    #   or use fixed_nodes to provide the nodes yourself.
+    #   \param scene_root   Root for finding all scene nodes
+    #   \param fixed_nodes  Scene nodes to be placed
+    @classmethod
+    def create(cls, scene_root = None, fixed_nodes = None, scale = 0.5):
+        arranger = Arrange(220, 220, 110, 110, scale = scale)
+        arranger.centerFirst()
+
+        if fixed_nodes is None:
+            fixed_nodes = []
+            for node_ in DepthFirstIterator(scene_root):
+                # Only count sliceable objects
+                if node_.callDecoration("isSliceable"):
+                    fixed_nodes.append(node_)
+
+        # Place all objects fixed nodes
+        for fixed_node in fixed_nodes:
+            vertices = fixed_node.callDecoration("getConvexHull")
+            points = copy.deepcopy(vertices._points)
+            shape_arr = ShapeArray.fromPolygon(points, scale = scale)
+            arranger.place(0, 0, shape_arr)
+
+        # If a build volume was set, add the disallowed areas
+        if Arrange.build_volume:
+            disallowed_areas = Arrange.build_volume.getDisallowedAreas()
+            for area in disallowed_areas:
+                points = copy.deepcopy(area._points)
+                shape_arr = ShapeArray.fromPolygon(points, scale = scale)
+                arranger.place(0, 0, shape_arr)
+        return arranger
+
+    ##  Find placement for a node (using offset shape) and place it (using hull shape)
+    #   return the nodes that should be placed
+    #   \param node
+    #   \param offset_shape_arr ShapeArray with offset, used to find location
+    #   \param hull_shape_arr ShapeArray without offset, for placing the shape
+    def findNodePlacement(self, node, offset_shape_arr, hull_shape_arr, step = 1):
+        new_node = copy.deepcopy(node)
+        best_spot = self.bestSpot(
+            offset_shape_arr, start_prio = self._last_priority, step = step)
+        x, y = best_spot.x, best_spot.y
+
+        # Save the last priority.
+        self._last_priority = best_spot.priority
+
+        # Ensure that the object is above the build platform
+        new_node.removeDecorator(ZOffsetDecorator.ZOffsetDecorator)
+        if new_node.getBoundingBox():
+            center_y = new_node.getWorldPosition().y - new_node.getBoundingBox().bottom
+        else:
+            center_y = 0
+
+        if x is not None:  # We could find a place
+            new_node.setPosition(Vector(x, center_y, y))
+            found_spot = True
+            self.place(x, y, hull_shape_arr)  # place the object in arranger
+        else:
+            Logger.log("d", "Could not find spot!"),
+            found_spot = False
+            new_node.setPosition(Vector(200, center_y, 100))
+        return new_node, found_spot
+
+    ##  Fill priority, center is best. Lower value is better
+    #   This is a strategy for the arranger.
+    def centerFirst(self):
+        # Square distance: creates a more round shape
+        self._priority = numpy.fromfunction(
+            lambda i, j: (self._offset_x - i) ** 2 + (self._offset_y - j) ** 2, self.shape, dtype=numpy.int32)
+        self._priority_unique_values = numpy.unique(self._priority)
+        self._priority_unique_values.sort()
+
+    ##  Fill priority, back is best. Lower value is better
+    #   This is a strategy for the arranger.
+    def backFirst(self):
+        self._priority = numpy.fromfunction(
+            lambda i, j: 10 * j + abs(self._offset_x - i), self.shape, dtype=numpy.int32)
+        self._priority_unique_values = numpy.unique(self._priority)
+        self._priority_unique_values.sort()
+
+    ##  Return the amount of "penalty points" for polygon, which is the sum of priority
+    #   999999 if occupied
+    #   \param x x-coordinate to check shape
+    #   \param y y-coordinate
+    #   \param shape_arr the ShapeArray object to place
+    def checkShape(self, x, y, shape_arr):
+        x = int(self._scale * x)
+        y = int(self._scale * y)
+        offset_x = x + self._offset_x + shape_arr.offset_x
+        offset_y = y + self._offset_y + shape_arr.offset_y
+        occupied_slice = self._occupied[
+            offset_y:offset_y + shape_arr.arr.shape[0],
+            offset_x:offset_x + shape_arr.arr.shape[1]]
+        try:
+            if numpy.any(occupied_slice[numpy.where(shape_arr.arr == 1)]):
+                return 999999
+        except IndexError:  # out of bounds if you try to place an object outside
+            return 999999
+        prio_slice = self._priority[
+            offset_y:offset_y + shape_arr.arr.shape[0],
+            offset_x:offset_x + shape_arr.arr.shape[1]]
+        return numpy.sum(prio_slice[numpy.where(shape_arr.arr == 1)])
+
+    ##  Find "best" spot for ShapeArray
+    #   Return namedtuple with properties x, y, penalty_points, priority
+    #   \param shape_arr ShapeArray
+    #   \param start_prio Start with this priority value (and skip the ones before)
+    #   \param step Slicing value, higher = more skips = faster but less accurate
+    def bestSpot(self, shape_arr, start_prio = 0, step = 1):
+        start_idx_list = numpy.where(self._priority_unique_values == start_prio)
+        if start_idx_list:
+            start_idx = start_idx_list[0][0]
+        else:
+            start_idx = 0
+        for priority in self._priority_unique_values[start_idx::step]:
+            tryout_idx = numpy.where(self._priority == priority)
+            for idx in range(len(tryout_idx[0])):
+                x = tryout_idx[0][idx]
+                y = tryout_idx[1][idx]
+                projected_x = x - self._offset_x
+                projected_y = y - self._offset_y
+
+                # array to "world" coordinates
+                penalty_points = self.checkShape(projected_x, projected_y, shape_arr)
+                if penalty_points != 999999:
+                    return LocationSuggestion(x = projected_x, y = projected_y, penalty_points = penalty_points, priority = priority)
+        return LocationSuggestion(x = None, y = None, penalty_points = None, priority = priority)  # No suitable location found :-(
+
+    ##  Place the object.
+    #   Marks the locations in self._occupied and self._priority
+    #   \param x x-coordinate
+    #   \param y y-coordinate
+    #   \param shape_arr ShapeArray object
+    def place(self, x, y, shape_arr):
+        x = int(self._scale * x)
+        y = int(self._scale * y)
+        offset_x = x + self._offset_x + shape_arr.offset_x
+        offset_y = y + self._offset_y + shape_arr.offset_y
+        shape_y, shape_x = self._occupied.shape
+
+        min_x = min(max(offset_x, 0), shape_x - 1)
+        min_y = min(max(offset_y, 0), shape_y - 1)
+        max_x = min(max(offset_x + shape_arr.arr.shape[1], 0), shape_x - 1)
+        max_y = min(max(offset_y + shape_arr.arr.shape[0], 0), shape_y - 1)
+        occupied_slice = self._occupied[min_y:max_y, min_x:max_x]
+        # we use a slice of shape because it can be out of bounds
+        occupied_slice[numpy.where(shape_arr.arr[
+            min_y - offset_y:max_y - offset_y, min_x - offset_x:max_x - offset_x] == 1)] = 1
+
+        # Set priority to low (= high number), so it won't get picked at trying out.
+        prio_slice = self._priority[min_y:max_y, min_x:max_x]
+        prio_slice[numpy.where(shape_arr.arr[
+            min_y - offset_y:max_y - offset_y, min_x - offset_x:max_x - offset_x] == 1)] = 999

cura/ArrangeObjectsJob.py

@@ -0,0 +1,86 @@
+# Copyright (c) 2017 Ultimaker B.V.
+# Cura is released under the terms of the AGPLv3 or higher.
+
+from UM.Job import Job
+from UM.Scene.SceneNode import SceneNode
+from UM.Math.Vector import Vector
+from UM.Operations.SetTransformOperation import SetTransformOperation
+from UM.Operations.TranslateOperation import TranslateOperation
+from UM.Operations.GroupedOperation import GroupedOperation
+from UM.Logger import Logger
+from UM.Message import Message
+from UM.i18n import i18nCatalog
+i18n_catalog = i18nCatalog("cura")
+
+from cura.ZOffsetDecorator import ZOffsetDecorator
+from cura.Arrange import Arrange
+from cura.ShapeArray import ShapeArray
+
+from typing import List
+
+
+class ArrangeObjectsJob(Job):
+    def __init__(self, nodes: List[SceneNode], fixed_nodes: List[SceneNode], min_offset = 8):
+        super().__init__()
+        self._nodes = nodes
+        self._fixed_nodes = fixed_nodes
+        self._min_offset = min_offset
+
+    def run(self):
+        status_message = Message(i18n_catalog.i18nc("@info:status", "Finding new location for objects"), lifetime = 0, dismissable=False, progress = 0)
+        status_message.show()
+        arranger = Arrange.create(fixed_nodes = self._fixed_nodes)
+
+        # Collect nodes to be placed
+        nodes_arr = []  # fill with (size, node, offset_shape_arr, hull_shape_arr)
+        for node in self._nodes:
+            offset_shape_arr, hull_shape_arr = ShapeArray.fromNode(node, min_offset = self._min_offset)
+            nodes_arr.append((offset_shape_arr.arr.shape[0] * offset_shape_arr.arr.shape[1], node, offset_shape_arr, hull_shape_arr))
+
+        # Sort the nodes with the biggest area first.
+        nodes_arr.sort(key=lambda item: item[0])
+        nodes_arr.reverse()
+
+        # Place nodes one at a time
+        start_priority = 0
+        last_priority = start_priority
+        last_size = None
+        grouped_operation = GroupedOperation()
+        found_solution_for_all = True
+        for idx, (size, node, offset_shape_arr, hull_shape_arr) in enumerate(nodes_arr):
+            # For performance reasons, we assume that when a location does not fit,
+            # it will also not fit for the next object (while what can be untrue).
+            # We also skip possibilities by slicing through the possibilities (step = 10)
+            if last_size == size:  # This optimization works if many of the objects have the same size
+                start_priority = last_priority
+            else:
+                start_priority = 0
+            best_spot = arranger.bestSpot(offset_shape_arr, start_prio=start_priority, step=10)
+            x, y = best_spot.x, best_spot.y
+            node.removeDecorator(ZOffsetDecorator)
+            if node.getBoundingBox():
+                center_y = node.getWorldPosition().y - node.getBoundingBox().bottom
+            else:
+                center_y = 0
+            if x is not None:  # We could find a place
+                last_size = size
+                last_priority = best_spot.priority
+
+                arranger.place(x, y, hull_shape_arr)  # take place before the next one
+
+                grouped_operation.addOperation(TranslateOperation(node, Vector(x, center_y, y), set_position = True))
+            else:
+                Logger.log("d", "Arrange all: could not find spot!")
+                found_solution_for_all = False
+                grouped_operation.addOperation(TranslateOperation(node, Vector(200, center_y, - idx * 20), set_position = True))
+
+            status_message.setProgress((idx + 1) / len(nodes_arr) * 100)
+            Job.yieldThread()
+
+        grouped_operation.push()
+
+        status_message.hide()
+
+        if not found_solution_for_all:
+            no_full_solution_message = Message(i18n_catalog.i18nc("@info:status", "Unable to find a location within the build volume for all objects"))
+            no_full_solution_message.show()

cura/BuildVolume.py

@@ -23,7 +23,6 @@ from UM.View.GL.OpenGL import OpenGL
 catalog = i18nCatalog("cura")
 
 import numpy
-import copy
 import math
 
 # Setting for clearance around the prime
@@ -110,10 +109,11 @@ class BuildVolume(SceneNode):
 
     def _onChangeTimerFinished(self):
         root = Application.getInstance().getController().getScene().getRoot()
-        new_scene_objects = set(node for node in BreadthFirstIterator(root) if node.getMeshData() and type(node) is SceneNode)
+        new_scene_objects = set(node for node in BreadthFirstIterator(root) if node.callDecoration("isSliceable"))
         if new_scene_objects != self._scene_objects:
             for node in new_scene_objects - self._scene_objects: #Nodes that were added to the scene.
-                node.decoratorsChanged.connect(self._onNodeDecoratorChanged)
+                self._updateNodeListeners(node)
+                node.decoratorsChanged.connect(self._updateNodeListeners)  # Make sure that decoration changes afterwards also receive the same treatment
             for node in self._scene_objects - new_scene_objects: #Nodes that were removed from the scene.
                 per_mesh_stack = node.callDecoration("getStack")
                 if per_mesh_stack:
@@ -121,7 +121,7 @@ class BuildVolume(SceneNode):
                 active_extruder_changed = node.callDecoration("getActiveExtruderChangedSignal")
                 if active_extruder_changed is not None:
                     node.callDecoration("getActiveExtruderChangedSignal").disconnect(self._updateDisallowedAreasAndRebuild)
-                node.decoratorsChanged.disconnect(self._onNodeDecoratorChanged)
+                node.decoratorsChanged.disconnect(self._updateNodeListeners)
 
             self._scene_objects = new_scene_objects
             self._onSettingPropertyChanged("print_sequence", "value")  # Create fake event, so right settings are triggered.
@@ -129,7 +129,7 @@ class BuildVolume(SceneNode):
     ##  Updates the listeners that listen for changes in per-mesh stacks.
     #
     #   \param node The node for which the decorators changed.
-    def _onNodeDecoratorChanged(self, node):
+    def _updateNodeListeners(self, node):
         per_mesh_stack = node.callDecoration("getStack")
         if per_mesh_stack:
             per_mesh_stack.propertyChanged.connect(self._onSettingPropertyChanged)
@@ -179,6 +179,54 @@ class BuildVolume(SceneNode):
 
         return True
 
+    ##  For every sliceable node, update node._outside_buildarea
+    #
+    def updateNodeBoundaryCheck(self):
+        root = Application.getInstance().getController().getScene().getRoot()
+        nodes = list(BreadthFirstIterator(root))
+        group_nodes = []
+
+        build_volume_bounding_box = self.getBoundingBox()
+        if build_volume_bounding_box:
+            # It's over 9000!
+            build_volume_bounding_box = build_volume_bounding_box.set(bottom=-9001)
+        else:
+            # No bounding box. This is triggered when running Cura from command line with a model for the first time
+            # In that situation there is a model, but no machine (and therefore no build volume.
+            return
+
+        for node in nodes:
+
+            # Need to check group nodes later
+            if node.callDecoration("isGroup"):
+                group_nodes.append(node)  # Keep list of affected group_nodes
+
+            if node.callDecoration("isSliceable") or node.callDecoration("isGroup"):
+                node._outside_buildarea = False
+                bbox = node.getBoundingBox()
+
+                # Mark the node as outside the build volume if the bounding box test fails.
+                if build_volume_bounding_box.intersectsBox(bbox) != AxisAlignedBox.IntersectionResult.FullIntersection:
+                    node._outside_buildarea = True
+                    continue
+
+                convex_hull = node.callDecoration("getConvexHull")
+                if convex_hull:
+                    if not convex_hull.isValid():
+                        return
+                    # Check for collisions between disallowed areas and the object
+                    for area in self.getDisallowedAreas():
+                        overlap = convex_hull.intersectsPolygon(area)
+                        if overlap is None:
+                            continue
+                        node._outside_buildarea = True
+                        continue
+
+        # Group nodes should override the _outside_buildarea property of their children.
+        for group_node in group_nodes:
+            for child_node in group_node.getAllChildren():
+                child_node._outside_buildarea = group_node._outside_buildarea
+
     ##  Recalculates the build volume & disallowed areas.
     def rebuild(self):
         if not self._width or not self._height or not self._depth:
@@ -362,6 +410,8 @@ class BuildVolume(SceneNode):
 
         Application.getInstance().getController().getScene()._maximum_bounds = scale_to_max_bounds
 
+        self.updateNodeBoundaryCheck()
+
     def getBoundingBox(self):
         return self._volume_aabb
 
@@ -629,11 +679,12 @@ class BuildVolume(SceneNode):
 
             if not self._global_container_stack.getProperty("machine_center_is_zero", "value"):
                 prime_x = prime_x - machine_width / 2 #Offset by half machine_width and _depth to put the origin in the front-left.
-                prime_y = prime_x + machine_depth / 2
+                prime_y = prime_y + machine_depth / 2
 
             prime_polygon = Polygon.approximatedCircle(PRIME_CLEARANCE)
-            prime_polygon = prime_polygon.translate(prime_x, prime_y)
             prime_polygon = prime_polygon.getMinkowskiHull(Polygon.approximatedCircle(border_size))
+
+            prime_polygon = prime_polygon.translate(prime_x, prime_y)
             result[extruder.getId()] = [prime_polygon]
 
         return result

cura/ConvexHullDecorator.py

@@ -258,12 +258,16 @@ class ConvexHullDecorator(SceneNodeDecorator):
     #   influences the collision area.
     def _offsetHull(self, convex_hull):
         horizontal_expansion = self._getSettingProperty("xy_offset", "value")
-        if horizontal_expansion != 0:
+        mold_width = 0
+        if self._getSettingProperty("mold_enabled", "value"):
+            mold_width = self._getSettingProperty("mold_width", "value")
+        hull_offset = horizontal_expansion + mold_width
+        if hull_offset != 0:
             expansion_polygon = Polygon(numpy.array([
-                [-horizontal_expansion, -horizontal_expansion],
+                [-hull_offset, -hull_offset],
-                [-horizontal_expansion, horizontal_expansion],
+                [-hull_offset, hull_offset],
-                [horizontal_expansion, horizontal_expansion],
+                [hull_offset, hull_offset],
-                [horizontal_expansion, -horizontal_expansion]
+                [hull_offset, -hull_offset]
             ], numpy.float32))
             return convex_hull.getMinkowskiHull(expansion_polygon)
         else:
@@ -331,4 +335,4 @@ class ConvexHullDecorator(SceneNodeDecorator):
     ##  Settings that change the convex hull.
     #
     #   If these settings change, the convex hull should be recalculated.
-    _influencing_settings = {"xy_offset"}
+    _influencing_settings = {"xy_offset", "mold_enabled", "mold_width"}

cura/ConvexHullNode.py

@@ -9,7 +9,10 @@ from UM.Mesh.MeshBuilder import MeshBuilder  # To create a mesh to display the c
 
 from UM.View.GL.OpenGL import OpenGL
 
+
 class ConvexHullNode(SceneNode):
+    shader = None  # To prevent the shader from being re-built over and over again, only load it once.
+
     ##  Convex hull node is a special type of scene node that is used to display an area, to indicate the
     #   location an object uses on the buildplate. This area (or area's in case of one at a time printing) is
     #   then displayed as a transparent shadow. If the adhesion type is set to raft, the area is extruded
@@ -19,8 +22,6 @@ class ConvexHullNode(SceneNode):
 
         self.setCalculateBoundingBox(False)
 
-        self._shader = None
-
         self._original_parent = parent
 
         # Color of the drawn convex hull
@@ -59,16 +60,16 @@ class ConvexHullNode(SceneNode):
         return self._node
 
     def render(self, renderer):
-        if not self._shader:
+        if not ConvexHullNode.shader:
-            self._shader = OpenGL.getInstance().createShaderProgram(Resources.getPath(Resources.Shaders, "transparent_object.shader"))
+            ConvexHullNode.shader = OpenGL.getInstance().createShaderProgram(Resources.getPath(Resources.Shaders, "transparent_object.shader"))
-            self._shader.setUniformValue("u_diffuseColor", self._color)
+            ConvexHullNode.shader.setUniformValue("u_diffuseColor", self._color)
-            self._shader.setUniformValue("u_opacity", 0.6)
+            ConvexHullNode.shader.setUniformValue("u_opacity", 0.6)
 
         if self.getParent():
             if self.getMeshData():
-                renderer.queueNode(self, transparent = True, shader = self._shader, backface_cull = True, sort = -8)
+                renderer.queueNode(self, transparent = True, shader = ConvexHullNode.shader, backface_cull = True, sort = -8)
                 if self._convex_hull_head_mesh:
-                    renderer.queueNode(self, shader = self._shader, transparent = True, mesh = self._convex_hull_head_mesh, backface_cull = True, sort = -8)
+                    renderer.queueNode(self, shader = ConvexHullNode.shader, transparent = True, mesh = self._convex_hull_head_mesh, backface_cull = True, sort = -8)
 
         return True
 

cura/CuraApplication.py

@@ -16,7 +16,6 @@ from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
 from UM.Mesh.ReadMeshJob import ReadMeshJob
 from UM.Logger import Logger
 from UM.Preferences import Preferences
-from UM.JobQueue import JobQueue
 from UM.SaveFile import SaveFile
 from UM.Scene.Selection import Selection
 from UM.Scene.GroupDecorator import GroupDecorator
@@ -25,15 +24,23 @@ from UM.Settings.InstanceContainer import InstanceContainer
 from UM.Settings.Validator import Validator
 from UM.Message import Message
 from UM.i18n import i18nCatalog
+from UM.Workspace.WorkspaceReader import WorkspaceReader
+from UM.Platform import Platform
 
 from UM.Operations.AddSceneNodeOperation import AddSceneNodeOperation
 from UM.Operations.RemoveSceneNodeOperation import RemoveSceneNodeOperation
 from UM.Operations.GroupedOperation import GroupedOperation
 from UM.Operations.SetTransformOperation import SetTransformOperation
+from cura.Arrange import Arrange
+from cura.ShapeArray import ShapeArray
+from cura.ConvexHullDecorator import ConvexHullDecorator
 from cura.SetParentOperation import SetParentOperation
 from cura.SliceableObjectDecorator import SliceableObjectDecorator
 from cura.BlockSlicingDecorator import BlockSlicingDecorator
 
+from cura.ArrangeObjectsJob import ArrangeObjectsJob
+from cura.MultiplyObjectsJob import MultiplyObjectsJob
+
 from UM.Settings.SettingDefinition import SettingDefinition, DefinitionPropertyType
 from UM.Settings.ContainerRegistry import ContainerRegistry
 from UM.Settings.SettingFunction import SettingFunction
@@ -87,6 +94,7 @@ if not MYPY:
         CuraVersion = "master"  # [CodeStyle: Reflecting imported value]
         CuraBuildType = ""
 
+
 class CuraApplication(QtApplication):
     class ResourceTypes:
         QmlFiles = Resources.UserType + 1
@@ -101,7 +109,6 @@ class CuraApplication(QtApplication):
     Q_ENUMS(ResourceTypes)
 
     def __init__(self):
-
         Resources.addSearchPath(os.path.join(QtApplication.getInstallPrefix(), "share", "cura", "resources"))
         if not hasattr(sys, "frozen"):
             Resources.addSearchPath(os.path.join(os.path.abspath(os.path.dirname(__file__)), "..", "resources"))
@@ -181,7 +188,10 @@ class CuraApplication(QtApplication):
             "SelectionTool",
             "CameraTool",
             "GCodeWriter",
-            "LocalFileOutputDevice"
+            "LocalFileOutputDevice",
+            "TranslateTool",
+            "FileLogger",
+            "XmlMaterialProfile"
         ])
         self._physics = None
         self._volume = None
@@ -237,7 +247,7 @@ class CuraApplication(QtApplication):
             ContainerRegistry.getInstance().load()
 
         Preferences.getInstance().addPreference("cura/active_mode", "simple")
-        Preferences.getInstance().addPreference("cura/recent_files", "")
+
         Preferences.getInstance().addPreference("cura/categories_expanded", "")
         Preferences.getInstance().addPreference("cura/jobname_prefix", True)
         Preferences.getInstance().addPreference("view/center_on_select", False)
@@ -245,11 +255,14 @@ class CuraApplication(QtApplication):
         Preferences.getInstance().addPreference("mesh/scale_tiny_meshes", True)
         Preferences.getInstance().addPreference("cura/dialog_on_project_save", True)
         Preferences.getInstance().addPreference("cura/asked_dialog_on_project_save", False)
-        Preferences.getInstance().addPreference("cura/choice_on_profile_override", 0)
+        Preferences.getInstance().addPreference("cura/choice_on_profile_override", "always_ask")
+        Preferences.getInstance().addPreference("cura/choice_on_open_project", "always_ask")
 
         Preferences.getInstance().addPreference("cura/currency", "€")
         Preferences.getInstance().addPreference("cura/material_settings", "{}")
 
+        Preferences.getInstance().addPreference("view/invert_zoom", False)
+
         for key in [
             "dialog_load_path",  # dialog_save_path is in LocalFileOutputDevicePlugin
             "dialog_profile_path",
@@ -310,20 +323,11 @@ class CuraApplication(QtApplication):
             experimental
         """.replace("\n", ";").replace(" ", ""))
 
-        JobQueue.getInstance().jobFinished.connect(self._onJobFinished)
-
         self.applicationShuttingDown.connect(self.saveSettings)
         self.engineCreatedSignal.connect(self._onEngineCreated)
 
         self.globalContainerStackChanged.connect(self._onGlobalContainerChanged)
         self._onGlobalContainerChanged()
-        self._recent_files = []
-        files = Preferences.getInstance().getValue("cura/recent_files").split(";")
-        for f in files:
-            if not os.path.isfile(f):
-                continue
-
-            self._recent_files.append(QUrl.fromLocalFile(f))
 
     def _onEngineCreated(self):
         self._engine.addImageProvider("camera", CameraImageProvider.CameraImageProvider())
@@ -341,10 +345,10 @@ class CuraApplication(QtApplication):
 
     def discardOrKeepProfileChanges(self):
         choice = Preferences.getInstance().getValue("cura/choice_on_profile_override")
-        if choice == 1:
+        if choice == "always_discard":
             # don't show dialog and DISCARD the profile
             self.discardOrKeepProfileChangesClosed("discard")
-        elif choice == 2:
+        elif choice == "always_keep":
             # don't show dialog and KEEP the profile
             self.discardOrKeepProfileChangesClosed("keep")
         else:
@@ -588,6 +592,9 @@ class CuraApplication(QtApplication):
         # The platform is a child of BuildVolume
         self._volume = BuildVolume.BuildVolume(root)
 
+        # Set the build volume of the arranger to the used build volume
+        Arrange.build_volume = self._volume
+
         self.getRenderer().setBackgroundColor(QColor(245, 245, 245))
 
         self._physics = PlatformPhysics.PlatformPhysics(controller, self._volume)
@@ -662,6 +669,7 @@ class CuraApplication(QtApplication):
     #
     #   \param engine The QML engine.
     def registerObjects(self, engine):
+        super().registerObjects(engine)
         engine.rootContext().setContextProperty("Printer", self)
         engine.rootContext().setContextProperty("CuraApplication", self)
         self._print_information = PrintInformation.PrintInformation()
@@ -695,14 +703,11 @@ class CuraApplication(QtApplication):
             if type_name in ("Cura", "Actions"):
                 continue
 
-            qmlRegisterType(QUrl.fromLocalFile(path), "Cura", 1, 0, type_name)
+            # Ignore anything that is not a QML file.
+            if not path.endswith(".qml"):
+                continue
 
-    ##  Get the backend of the application (the program that does the heavy lifting).
+            qmlRegisterType(QUrl.fromLocalFile(path), "Cura", 1, 0, type_name)
-    #   The backend is also a QObject, which can be used from qml.
-    #   \returns Backend \type{Backend}
-    @pyqtSlot(result = "QObject*")
-    def getBackend(self):
-        return self._backend
 
     def onSelectionChanged(self):
         if Selection.hasSelection():
@@ -720,7 +725,9 @@ class CuraApplication(QtApplication):
                 else:
                     # Default
                     self.getController().setActiveTool("TranslateTool")
-            if Preferences.getInstance().getValue("view/center_on_select"):
+
+            # Hack: QVector bindings are broken on PyQt 5.7.1 on Windows. This disables it being called at all.
+            if Preferences.getInstance().getValue("view/center_on_select") and not Platform.isWindows():
                 self._center_after_select = True
         else:
             if self.getController().getActiveTool():
@@ -839,24 +846,14 @@ class CuraApplication(QtApplication):
             op.push()
 
     ##  Create a number of copies of existing object.
+    #   \param object_id
+    #   \param count number of copies
+    #   \param min_offset minimum offset to other objects.
     @pyqtSlot("quint64", int)
-    def multiplyObject(self, object_id, count):
+    def multiplyObject(self, object_id, count, min_offset = 8):
-        node = self.getController().getScene().findObject(object_id)
+        job = MultiplyObjectsJob(object_id, count, min_offset)
-
+        job.start()
-        if not node and object_id != 0:  # Workaround for tool handles overlapping the selected object
+        return
-            node = Selection.getSelectedObject(0)
-
-        if node:
-            current_node = node
-            # Find the topmost group
-            while current_node.getParent() and current_node.getParent().callDecoration("isGroup"):
-                current_node = current_node.getParent()
-
-            op = GroupedOperation()
-            for _ in range(count):
-                new_node = copy.deepcopy(current_node)
-                op.addOperation(AddSceneNodeOperation(new_node, current_node.getParent()))
-            op.push()
 
     ##  Center object on platform.
     @pyqtSlot("quint64")
@@ -974,6 +971,50 @@ class CuraApplication(QtApplication):
                 op.addOperation(SetTransformOperation(node, Vector(0, center_y, 0), Quaternion(), Vector(1, 1, 1)))
             op.push()
 
+    ##  Arrange all objects.
+    @pyqtSlot()
+    def arrangeAll(self):
+        nodes = []
+        for node in DepthFirstIterator(self.getController().getScene().getRoot()):
+            if type(node) is not SceneNode:
+                continue
+            if not node.getMeshData() and not node.callDecoration("isGroup"):
+                continue  # Node that doesnt have a mesh and is not a group.
+            if node.getParent() and node.getParent().callDecoration("isGroup"):
+                continue  # Grouped nodes don't need resetting as their parent (the group) is resetted)
+            if not node.isSelectable():
+                continue  # i.e. node with layer data
+            nodes.append(node)
+        self.arrange(nodes, fixed_nodes = [])
+
+    ##  Arrange Selection
+    @pyqtSlot()
+    def arrangeSelection(self):
+        nodes = Selection.getAllSelectedObjects()
+
+        # What nodes are on the build plate and are not being moved
+        fixed_nodes = []
+        for node in DepthFirstIterator(self.getController().getScene().getRoot()):
+            if type(node) is not SceneNode:
+                continue
+            if not node.getMeshData() and not node.callDecoration("isGroup"):
+                continue  # Node that doesnt have a mesh and is not a group.
+            if node.getParent() and node.getParent().callDecoration("isGroup"):
+                continue  # Grouped nodes don't need resetting as their parent (the group) is resetted)
+            if not node.isSelectable():
+                continue  # i.e. node with layer data
+            if node in nodes:  # exclude selected node from fixed_nodes
+                continue
+            fixed_nodes.append(node)
+        self.arrange(nodes, fixed_nodes)
+
+    ##  Arrange a set of nodes given a set of fixed nodes
+    #   \param nodes nodes that we have to place
+    #   \param fixed_nodes nodes that are placed in the arranger before finding spots for nodes
+    def arrange(self, nodes, fixed_nodes):
+        job = ArrangeObjectsJob(nodes, fixed_nodes)
+        job.start()
+
     ##  Reload all mesh data on the screen from file.
     @pyqtSlot()
     def reloadAll(self):
@@ -1009,12 +1050,6 @@ class CuraApplication(QtApplication):
 
         return log
 
-    recentFilesChanged = pyqtSignal()
-
-    @pyqtProperty("QVariantList", notify = recentFilesChanged)
-    def recentFiles(self):
-        return self._recent_files
-
     @pyqtSlot("QStringList")
     def setExpandedCategories(self, categories):
         categories = list(set(categories))
@@ -1050,7 +1085,9 @@ class CuraApplication(QtApplication):
             transformation.setTranslation(zero_translation)
             transformed_mesh = mesh.getTransformed(transformation)
             center = transformed_mesh.getCenterPosition()
-            object_centers.append(center)
+            if center is not None:
+                object_centers.append(center)
+
         if object_centers and len(object_centers) > 0:
             middle_x = sum([v.x for v in object_centers]) / len(object_centers)
             middle_y = sum([v.y for v in object_centers]) / len(object_centers)
@@ -1120,25 +1157,6 @@ class CuraApplication(QtApplication):
 
     fileLoaded = pyqtSignal(str)
 
-    def _onJobFinished(self, job):
-        if type(job) is not ReadMeshJob or not job.getResult():
-            return
-
-        f = QUrl.fromLocalFile(job.getFileName())
-        if f in self._recent_files:
-            self._recent_files.remove(f)
-
-        self._recent_files.insert(0, f)
-        if len(self._recent_files) > 10:
-            del self._recent_files[10]
-
-        pref = ""
-        for path in self._recent_files:
-            pref += path.toLocalFile() + ";"
-
-        Preferences.getInstance().setValue("cura/recent_files", pref)
-        self.recentFilesChanged.emit()
-
     def _reloadMeshFinished(self, job):
         # TODO; This needs to be fixed properly. We now make the assumption that we only load a single mesh!
         mesh_data = job.getResult()[0].getMeshData()
@@ -1233,6 +1251,10 @@ class CuraApplication(QtApplication):
         filename = job.getFileName()
         self._currently_loading_files.remove(filename)
 
+        root = self.getController().getScene().getRoot()
+        arranger = Arrange.create(scene_root = root)
+        min_offset = 8
+
         for node in nodes:
             node.setSelectable(True)
             node.setName(os.path.basename(filename))
@@ -1253,10 +1275,37 @@ class CuraApplication(QtApplication):
 
             scene = self.getController().getScene()
 
+            # If there is no convex hull for the node, start calculating it and continue.
+            if not node.getDecorator(ConvexHullDecorator):
+                node.addDecorator(ConvexHullDecorator())
+
+            if node.callDecoration("isSliceable"):
+                # Find node location
+                offset_shape_arr, hull_shape_arr = ShapeArray.fromNode(node, min_offset = min_offset)
+
+                # Step is for skipping tests to make it a lot faster. it also makes the outcome somewhat rougher
+                node,_ = arranger.findNodePlacement(node, offset_shape_arr, hull_shape_arr, step = 10)
+
             op = AddSceneNodeOperation(node, scene.getRoot())
             op.push()
-
             scene.sceneChanged.emit(node)
 
     def addNonSliceableExtension(self, extension):
         self._non_sliceable_extensions.append(extension)
+
+    @pyqtSlot(str, result=bool)
+    def checkIsValidProjectFile(self, file_url):
+        """
+        Checks if the given file URL is a valid project file.
+        """
+        try:
+            file_path = QUrl(file_url).toLocalFile()
+            workspace_reader = self.getWorkspaceFileHandler().getReaderForFile(file_path)
+            if workspace_reader is None:
+                return False  # non-project files won't get a reader
+
+            result = workspace_reader.preRead(file_path, show_dialog=False)
+            return result == WorkspaceReader.PreReadResult.accepted
+        except Exception as e:
+            Logger.log("e", "Could not check file %s: %s", file_url, e)
+            return False

cura/Layer.py

@@ -1,10 +1,8 @@
-from .LayerPolygon import LayerPolygon
-
-from UM.Math.Vector import Vector
 from UM.Mesh.MeshBuilder import MeshBuilder
 
 import numpy
 
+
 class Layer:
     def __init__(self, layer_id):
         self._id = layer_id
@@ -80,8 +78,7 @@ class Layer:
         else:
             for polygon in self._polygons:
                 line_count += polygon.jumpCount
-            
+
-        
         # Reserve the neccesary space for the data upfront
         builder.reserveFaceAndVertexCount(2 * line_count, 4 * line_count)
         
@@ -94,7 +91,7 @@ class Layer:
             # Line types of the points we want to draw
             line_types = polygon.types[index_mask]
             
-             # Shift the z-axis according to previous implementation. 
+            # Shift the z-axis according to previous implementation.
             if make_mesh:
                 points[polygon.isInfillOrSkinType(line_types), 1::3] -= 0.01
             else:
@@ -106,13 +103,14 @@ class Layer:
             # Scale all normals by the line width of the current line so we can easily offset.
             normals *= (polygon.lineWidths[index_mask.ravel()] / 2)
 
-            # Create 4 points to draw each line segment, points +- normals results in 2 points each. Reshape to one point per line
+            # Create 4 points to draw each line segment, points +- normals results in 2 points each.
+            # After this we reshape to one point per line.
             f_points = numpy.concatenate((points-normals, points+normals), 1).reshape((-1, 3))
-            # __index_pattern defines which points to use to draw the two faces for each lines egment, the following linesegment is offset by 4 
+
+            # __index_pattern defines which points to use to draw the two faces for each lines egment, the following linesegment is offset by 4
             f_indices = ( self.__index_pattern + numpy.arange(0, 4 * len(normals), 4, dtype=numpy.int32).reshape((-1, 1)) ).reshape((-1, 3))
             f_colors = numpy.repeat(polygon.mapLineTypeToColor(line_types), 4, 0)
 
             builder.addFacesWithColor(f_points, f_indices, f_colors)
-
         
         return builder.build()

cura/LayerData.py

@@ -2,11 +2,12 @@
 # Cura is released under the terms of the AGPLv3 or higher.
 from UM.Mesh.MeshData import MeshData
 
+
 ##  Class to holds the layer mesh and information about the layers.
 # Immutable, use LayerDataBuilder to create one of these.
 class LayerData(MeshData):
     def __init__(self, vertices = None, normals = None, indices = None, colors = None, uvs = None, file_name = None,
-        center_position = None, layers=None, element_counts=None, attributes=None):
+                 center_position = None, layers=None, element_counts=None, attributes=None):
         super().__init__(vertices=vertices, normals=normals, indices=indices, colors=colors, uvs=uvs,
                          file_name=file_name, center_position=center_position, attributes=attributes)
         self._layers = layers

cura/LayerDataBuilder.py

@@ -8,6 +8,7 @@ from .LayerData import LayerData
 
 import numpy
 
+
 ## Builder class for constructing a LayerData object
 class LayerDataBuilder(MeshBuilder):
     def __init__(self):

cura/MultiplyObjectsJob.py

@@ -0,0 +1,75 @@
+# Copyright (c) 2017 Ultimaker B.V.
+# Cura is released under the terms of the AGPLv3 or higher.
+
+from UM.Job import Job
+from UM.Scene.SceneNode import SceneNode
+from UM.Math.Vector import Vector
+from UM.Operations.SetTransformOperation import SetTransformOperation
+from UM.Operations.TranslateOperation import TranslateOperation
+from UM.Operations.GroupedOperation import GroupedOperation
+from UM.Logger import Logger
+from UM.Message import Message
+from UM.i18n import i18nCatalog
+i18n_catalog = i18nCatalog("cura")
+
+from cura.ZOffsetDecorator import ZOffsetDecorator
+from cura.Arrange import Arrange
+from cura.ShapeArray import ShapeArray
+
+from typing import List
+
+from UM.Application import Application
+from UM.Scene.Selection import Selection
+from UM.Operations.AddSceneNodeOperation import AddSceneNodeOperation
+
+
+class MultiplyObjectsJob(Job):
+    def __init__(self, object_id, count, min_offset = 8):
+        super().__init__()
+        self._object_id = object_id
+        self._count = count
+        self._min_offset = min_offset
+
+    def run(self):
+        status_message = Message(i18n_catalog.i18nc("@info:status", "Multiplying and placing objects"), lifetime=0,
+                                 dismissable=False, progress=0)
+        status_message.show()
+        scene = Application.getInstance().getController().getScene()
+        node = scene.findObject(self._object_id)
+
+        if not node and self._object_id != 0:  # Workaround for tool handles overlapping the selected object
+            node = Selection.getSelectedObject(0)
+
+        # If object is part of a group, multiply group
+        current_node = node
+        while current_node.getParent() and current_node.getParent().callDecoration("isGroup"):
+            current_node = current_node.getParent()
+
+        root = scene.getRoot()
+        arranger = Arrange.create(scene_root=root)
+        offset_shape_arr, hull_shape_arr = ShapeArray.fromNode(current_node, min_offset=self._min_offset)
+        nodes = []
+        found_solution_for_all = True
+        for i in range(self._count):
+            # We do place the nodes one by one, as we want to yield in between.
+            node, solution_found = arranger.findNodePlacement(current_node, offset_shape_arr, hull_shape_arr)
+            if not solution_found:
+                found_solution_for_all = False
+                new_location = node.getPosition()
+                new_location = new_location.set(z = 100 - i * 20)
+                node.setPosition(new_location)
+
+            nodes.append(node)
+            Job.yieldThread()
+            status_message.setProgress((i + 1) / self._count * 100)
+
+        if nodes:
+            op = GroupedOperation()
+            for new_node in nodes:
+                op.addOperation(AddSceneNodeOperation(new_node, current_node.getParent()))
+            op.push()
+        status_message.hide()
+
+        if not found_solution_for_all:
+            no_full_solution_message = Message(i18n_catalog.i18nc("@info:status", "Unable to find a location within the build volume for all objects"))
+            no_full_solution_message.show()

cura/PlatformPhysics.py

@@ -3,10 +3,10 @@
 
 from PyQt5.QtCore import QTimer
 
+from UM.Application import Application
 from UM.Scene.SceneNode import SceneNode
 from UM.Scene.Iterator.BreadthFirstIterator import BreadthFirstIterator
 from UM.Math.Vector import Vector
-from UM.Math.AxisAlignedBox import AxisAlignedBox
 from UM.Scene.Selection import Selection
 from UM.Preferences import Preferences
 
@@ -51,10 +51,13 @@ class PlatformPhysics:
         # same direction.
         transformed_nodes = []
 
-        group_nodes = []
         # We try to shuffle all the nodes to prevent "locked" situations, where iteration B inverts iteration A.
         # By shuffling the order of the nodes, this might happen a few times, but at some point it will resolve.
         nodes = list(BreadthFirstIterator(root))
+
+        # Only check nodes inside build area.
+        nodes = [node for node in nodes if (hasattr(node, "_outside_buildarea") and not node._outside_buildarea)]
+
         random.shuffle(nodes)
         for node in nodes:
             if node is root or type(node) is not SceneNode or node.getBoundingBox() is None:
@@ -62,24 +65,6 @@ class PlatformPhysics:
 
             bbox = node.getBoundingBox()
 
-            # Ignore intersections with the bottom
-            build_volume_bounding_box = self._build_volume.getBoundingBox()
-            if build_volume_bounding_box:
-                # It's over 9000!
-                build_volume_bounding_box = build_volume_bounding_box.set(bottom=-9001)
-            else:
-                # No bounding box. This is triggered when running Cura from command line with a model for the first time
-                # In that situation there is a model, but no machine (and therefore no build volume.
-                return
-            node._outside_buildarea = False
-
-            # Mark the node as outside the build volume if the bounding box test fails.
-            if build_volume_bounding_box.intersectsBox(bbox) != AxisAlignedBox.IntersectionResult.FullIntersection:
-                node._outside_buildarea = True
-
-            if node.callDecoration("isGroup"):
-                group_nodes.append(node)  # Keep list of affected group_nodes
-
             # Move it downwards if bottom is above platform
             move_vector = Vector()
             if Preferences.getInstance().getValue("physics/automatic_drop_down") and not (node.getParent() and node.getParent().callDecoration("isGroup")) and node.isEnabled(): #If an object is grouped, don't move it down
@@ -145,27 +130,14 @@ class PlatformPhysics:
                                 #  Simply waiting for the next tick seems to resolve this correctly.
                                 overlap = None
 
-            convex_hull = node.callDecoration("getConvexHull")
-            if convex_hull:
-                if not convex_hull.isValid():
-                    return
-                # Check for collisions between disallowed areas and the object
-                for area in self._build_volume.getDisallowedAreas():
-                    overlap = convex_hull.intersectsPolygon(area)
-                    if overlap is None:
-                        continue
-                    node._outside_buildarea = True
-
             if not Vector.Null.equals(move_vector, epsilon=1e-5):
                 transformed_nodes.append(node)
                 op = PlatformPhysicsOperation.PlatformPhysicsOperation(node, move_vector)
                 op.push()
 
-        # Group nodes should override the _outside_buildarea property of their children.
+        # After moving, we have to evaluate the boundary checks for nodes
-        for group_node in group_nodes:
+        build_volume = Application.getInstance().getBuildVolume()
-            for child_node in group_node.getAllChildren():
+        build_volume.updateNodeBoundaryCheck()
-                child_node._outside_buildarea = group_node._outside_buildarea
-
 
     def _onToolOperationStarted(self, tool):
         self._enabled = False

cura/PrintInformation.py

@@ -75,6 +75,8 @@ class PrintInformation(QObject):
         Application.getInstance().getMachineManager().activeMaterialChanged.connect(self._onActiveMaterialChanged)
         self._onActiveMaterialChanged()
 
+        self._material_amounts = []
+
     currentPrintTimeChanged = pyqtSignal()
 
     preSlicedChanged = pyqtSignal()
@@ -126,7 +128,7 @@ class PrintInformation(QObject):
             return
 
         # Material amount is sent as an amount of mm^3, so calculate length from that
-        r = Application.getInstance().getGlobalContainerStack().getProperty("material_diameter", "value") / 2
+        radius = Application.getInstance().getGlobalContainerStack().getProperty("material_diameter", "value") / 2
         self._material_lengths = []
         self._material_weights = []
         self._material_costs = []
@@ -161,8 +163,12 @@ class PrintInformation(QObject):
                     else:
                         cost = 0
 
+            if radius != 0:
+                length = round((amount / (math.pi * radius ** 2)) / 1000, 2)
+            else:
+                length = 0
             self._material_weights.append(weight)
-            self._material_lengths.append(round((amount / (math.pi * r ** 2)) / 1000, 2))
+            self._material_lengths.append(length)
             self._material_costs.append(cost)
 
         self.materialLengthsChanged.emit()

cura/Settings/ExtruderManager.py

@@ -255,7 +255,12 @@ class ExtruderManager(QObject):
 
                 preferred_materials = container_registry.findInstanceContainers(**search_criteria)
                 if len(preferred_materials) >= 1:
-                    material = preferred_materials[0]
+                    # In some cases we get multiple materials. In that case, prefer materials that are marked as read only.
+                    read_only_preferred_materials = [preferred_material for preferred_material in preferred_materials if preferred_material.isReadOnly()]
+                    if len(read_only_preferred_materials) >= 1:
+                        material = read_only_preferred_materials[0]
+                    else:
+                        material = preferred_materials[0]
                 else:
                     Logger.log("w", "The preferred material \"%s\" of machine %s doesn't exist or is not a material profile.", preferred_material_id, machine_id)
                     # And leave it at the default material.

cura/Settings/MachineManager.py

@@ -2,7 +2,7 @@
 # Cura is released under the terms of the AGPLv3 or higher.
 from typing import Union
 
-from PyQt5.QtCore import QObject, pyqtProperty, pyqtSignal
+from PyQt5.QtCore import QObject, pyqtProperty, pyqtSignal, QTimer
 from UM.FlameProfiler import pyqtSlot
 from PyQt5.QtWidgets import QMessageBox
 from UM import Util
@@ -83,6 +83,11 @@ class MachineManager(QObject):
         self._material_incompatible_message = Message(catalog.i18nc("@info:status",
                                               "The selected material is incompatible with the selected machine or configuration."))
 
+        self._error_check_timer = QTimer()
+        self._error_check_timer.setInterval(250)
+        self._error_check_timer.setSingleShot(True)
+        self._error_check_timer.timeout.connect(self._updateStacksHaveErrors)
+
     globalContainerChanged = pyqtSignal() # Emitted whenever the global stack is changed (ie: when changing between printers, changing a global profile, but not when changing a value)
     activeMaterialChanged = pyqtSignal()
     activeVariantChanged = pyqtSignal()
@@ -306,33 +311,7 @@ class MachineManager(QObject):
             self.activeStackValueChanged.emit()
 
         elif property_name == "validationState":
-            if not self._stacks_have_errors:
+            self._error_check_timer.start()
-                # fast update, we only have to look at the current changed property
-                if self._global_container_stack.getProperty("machine_extruder_count", "value") > 1 and self._active_container_stack.getProperty(key, "settable_per_extruder"):
-                    extruder_index = int(self._active_container_stack.getProperty(key, "limit_to_extruder"))
-                    if extruder_index >= 0: #We have to look up the value from a different extruder.
-                        stack = ExtruderManager.getInstance().getExtruderStack(str(extruder_index))
-                    else:
-                        stack = self._active_container_stack
-                else:
-                    stack = self._global_container_stack
-                changed_validation_state = stack.getProperty(key, property_name)
-
-                if changed_validation_state is None:
-                    # Setting is not validated. This can happen if there is only a setting definition.
-                    # We do need to validate it, because a setting defintions value can be set by a function, which could
-                    # be an invalid setting.
-                    definition = self._active_container_stack.getSettingDefinition(key)
-                    validator_type = SettingDefinition.getValidatorForType(definition.type)
-                    if validator_type:
-                        validator = validator_type(key)
-                        changed_validation_state = validator(self._active_container_stack)
-                if changed_validation_state in (ValidatorState.Exception, ValidatorState.MaximumError, ValidatorState.MinimumError):
-                    self._stacks_have_errors = True
-                    self.stacksValidationChanged.emit()
-            else:
-                # Normal check
-                self._updateStacksHaveErrors()
 
     @pyqtSlot(str)
     def setActiveMachine(self, stack_id: str) -> None:
@@ -813,6 +792,10 @@ class MachineManager(QObject):
                 Logger.log("e", "Tried to set quality to a container that is not of the right type")
                 return
 
+            # Check if it was at all possible to find new settings
+            if new_quality_settings_list is None:
+                return
+
             name_changed_connect_stacks = []  # Connect these stacks to the name changed callback
             for setting_info in new_quality_settings_list:
                 stack = setting_info["stack"]
@@ -889,7 +872,12 @@ class MachineManager(QObject):
         quality_changes_profiles = quality_manager.findQualityChangesByName(quality_changes_name,
                                                                             global_machine_definition)
 
-        global_quality_changes = [qcp for qcp in quality_changes_profiles if qcp.getMetaDataEntry("extruder") is None][0]
+        global_quality_changes = [qcp for qcp in quality_changes_profiles if qcp.getMetaDataEntry("extruder") is None]
+        if global_quality_changes:
+            global_quality_changes = global_quality_changes[0]
+        else:
+            Logger.log("e", "Could not find the global quality changes container with name %s", quality_changes_name)
+            return None
         material = global_container_stack.findContainer(type="material")
 
         # For the global stack, find a quality which matches the quality_type in

cura/ShapeArray.py

@@ -0,0 +1,111 @@
+import numpy
+import copy
+
+from UM.Math.Polygon import Polygon
+
+
+##  Polygon representation as an array for use with Arrange
+class ShapeArray:
+    def __init__(self, arr, offset_x, offset_y, scale = 1):
+        self.arr = arr
+        self.offset_x = offset_x
+        self.offset_y = offset_y
+        self.scale = scale
+
+    ##  Instantiate from a bunch of vertices
+    #   \param vertices
+    #   \param scale  scale the coordinates
+    @classmethod
+    def fromPolygon(cls, vertices, scale = 1):
+        # scale
+        vertices = vertices * scale
+        # flip y, x -> x, y
+        flip_vertices = numpy.zeros((vertices.shape))
+        flip_vertices[:, 0] = vertices[:, 1]
+        flip_vertices[:, 1] = vertices[:, 0]
+        flip_vertices = flip_vertices[::-1]
+        # offset, we want that all coordinates have positive values
+        offset_y = int(numpy.amin(flip_vertices[:, 0]))
+        offset_x = int(numpy.amin(flip_vertices[:, 1]))
+        flip_vertices[:, 0] = numpy.add(flip_vertices[:, 0], -offset_y)
+        flip_vertices[:, 1] = numpy.add(flip_vertices[:, 1], -offset_x)
+        shape = [int(numpy.amax(flip_vertices[:, 0])), int(numpy.amax(flip_vertices[:, 1]))]
+        arr = cls.arrayFromPolygon(shape, flip_vertices)
+        return cls(arr, offset_x, offset_y)
+
+    ##  Instantiate an offset and hull ShapeArray from a scene node.
+    #   \param node source node where the convex hull must be present
+    #   \param min_offset offset for the offset ShapeArray
+    #   \param scale scale the coordinates
+    @classmethod
+    def fromNode(cls, node, min_offset, scale = 0.5):
+        transform = node._transformation
+        transform_x = transform._data[0][3]
+        transform_y = transform._data[2][3]
+        hull_verts = node.callDecoration("getConvexHull")
+
+        offset_verts = hull_verts.getMinkowskiHull(Polygon.approximatedCircle(min_offset))
+        offset_points = copy.deepcopy(offset_verts._points)  # x, y
+        offset_points[:, 0] = numpy.add(offset_points[:, 0], -transform_x)
+        offset_points[:, 1] = numpy.add(offset_points[:, 1], -transform_y)
+        offset_shape_arr = ShapeArray.fromPolygon(offset_points, scale = scale)
+
+        hull_points = copy.deepcopy(hull_verts._points)
+        hull_points[:, 0] = numpy.add(hull_points[:, 0], -transform_x)
+        hull_points[:, 1] = numpy.add(hull_points[:, 1], -transform_y)
+        hull_shape_arr = ShapeArray.fromPolygon(hull_points, scale = scale)  # x, y
+
+        return offset_shape_arr, hull_shape_arr
+
+    ##  Create np.array with dimensions defined by shape
+    #   Fills polygon defined by vertices with ones, all other values zero
+    #   Only works correctly for convex hull vertices
+    #   Originally from: http://stackoverflow.com/questions/37117878/generating-a-filled-polygon-inside-a-numpy-array
+    #   \param shape  numpy format shape, [x-size, y-size]
+    #   \param vertices
+    @classmethod
+    def arrayFromPolygon(cls, shape, vertices):
+        base_array = numpy.zeros(shape, dtype=float)  # Initialize your array of zeros
+
+        fill = numpy.ones(base_array.shape) * True  # Initialize boolean array defining shape fill
+
+        # Create check array for each edge segment, combine into fill array
+        for k in range(vertices.shape[0]):
+            fill = numpy.all([fill, cls._check(vertices[k - 1], vertices[k], base_array)], axis=0)
+
+        # Set all values inside polygon to one
+        base_array[fill] = 1
+
+        return base_array
+
+    ##  Return indices that mark one side of the line, used by arrayFromPolygon
+    #   Uses the line defined by p1 and p2 to check array of
+    #   input indices against interpolated value
+    #   Returns boolean array, with True inside and False outside of shape
+    #   Originally from: http://stackoverflow.com/questions/37117878/generating-a-filled-polygon-inside-a-numpy-array
+    #   \param p1 2-tuple with x, y for point 1
+    #   \param p2 2-tuple with x, y for point 2
+    #   \param base_array boolean array to project the line on
+    @classmethod
+    def _check(cls, p1, p2, base_array):
+        if p1[0] == p2[0] and p1[1] == p2[1]:
+            return
+        idxs = numpy.indices(base_array.shape)  # Create 3D array of indices
+
+        p1 = p1.astype(float)
+        p2 = p2.astype(float)
+
+        if p2[0] == p1[0]:
+            sign = numpy.sign(p2[1] - p1[1])
+            return idxs[1] * sign
+
+        if p2[1] == p1[1]:
+            sign = numpy.sign(p2[0] - p1[0])
+            return idxs[1] * sign
+
+        # Calculate max column idx for each row idx based on interpolated line between two points
+
+        max_col_idx = (idxs[0] - p1[0]) / (p2[0] - p1[0]) * (p2[1] - p1[1]) + p1[1]
+        sign = numpy.sign(p2[0] - p1[0])
+        return idxs[1] * sign <= max_col_idx * sign
+

cura_app.py

@@ -50,7 +50,6 @@ sys.excepthook = exceptHook
 # first seems to prevent Sip from going into a state where it
 # tries to create PyQt objects on a non-main thread.
 import Arcus #@UnusedImport
-from UM.Platform import Platform
 import cura.CuraApplication
 import cura.Settings.CuraContainerRegistry
 

plugins/3MFReader/ThreeMFReader.py

@@ -16,6 +16,7 @@ from UM.Application import Application
 from cura.Settings.ExtruderManager import ExtruderManager
 from cura.QualityManager import QualityManager
 from UM.Scene.SceneNode import SceneNode
+from cura.SliceableObjectDecorator import SliceableObjectDecorator
 
 MYPY = False
 
@@ -144,6 +145,11 @@ class ThreeMFReader(MeshReader):
             group_decorator = GroupDecorator()
             um_node.addDecorator(group_decorator)
         um_node.setSelectable(True)
+        if um_node.getMeshData():
+            # Assuming that all nodes with mesh data are printable objects
+            # affects (auto) slicing
+            sliceable_decorator = SliceableObjectDecorator()
+            um_node.addDecorator(sliceable_decorator)
         return um_node
 
     def read(self, file_name):

plugins/3MFReader/ThreeMFWorkspaceReader.py

@@ -47,7 +47,7 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
             self._id_mapping[old_id] = self._container_registry.uniqueName(old_id)
         return self._id_mapping[old_id]
 
-    def preRead(self, file_name):
+    def preRead(self, file_name, show_dialog=True, *args, **kwargs):
         self._3mf_mesh_reader = Application.getInstance().getMeshFileHandler().getReaderForFile(file_name)
         if self._3mf_mesh_reader and self._3mf_mesh_reader.preRead(file_name) == WorkspaceReader.PreReadResult.accepted:
             pass
@@ -167,6 +167,10 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
             Logger.log("w", "File %s is not a valid workspace.", file_name)
             return WorkspaceReader.PreReadResult.failed
 
+        # In case we use preRead() to check if a file is a valid project file, we don't want to show a dialog.
+        if not show_dialog:
+            return WorkspaceReader.PreReadResult.accepted
+
         # Show the dialog, informing the user what is about to happen.
         self._dialog.setMachineConflict(machine_conflict)
         self._dialog.setQualityChangesConflict(quality_changes_conflict)

plugins/3MFReader/WorkspaceDialog.qml

@@ -12,15 +12,15 @@ UM.Dialog
 {
     title: catalog.i18nc("@title:window", "Open Project")
 
-    width: 550
+    width: 550 * Screen.devicePixelRatio
-    minimumWidth: 550
+    minimumWidth: 550 * Screen.devicePixelRatio
-    maximumWidth: 550
+    maximumWidth: minimumWidth
 
-    height: 400
+    height: 400 * Screen.devicePixelRatio
-    minimumHeight: 400
+    minimumHeight: 400 * Screen.devicePixelRatio
-    maximumHeight: 400
+    maximumHeight: minimumHeight
-    property int comboboxHeight: 15
+    property int comboboxHeight: 15 * Screen.devicePixelRatio
-    property int spacerHeight: 10
+    property int spacerHeight: 10 * Screen.devicePixelRatio
     onClosing: manager.notifyClosed()
     onVisibleChanged:
     {
@@ -33,20 +33,17 @@ UM.Dialog
     }
     Item
     {
-        anchors.top: parent.top
+        anchors.fill: parent
-        anchors.bottom: parent.bottom
+        anchors.margins: 20 * Screen.devicePixelRatio
-        anchors.left: parent.left
-        anchors.right: parent.right
-
-        anchors.topMargin: 20
-        anchors.bottomMargin: 20
-        anchors.leftMargin:20
-        anchors.rightMargin: 20
 
         UM.I18nCatalog
         {
-            id: catalog;
+            id: catalog
-            name: "cura";
+            name: "cura"
+        }
+        SystemPalette
+        {
+            id: palette
         }
 
         ListModel
@@ -70,12 +67,12 @@ UM.Dialog
             {
                 id: titleLabel
                 text: catalog.i18nc("@action:title", "Summary - Cura Project")
-                font.pixelSize: 22
+                font.pointSize: 18
             }
             Rectangle
             {
                 id: separator
-                color: "black"
+                color: palette.text
                 width: parent.width
                 height: 1
             }
@@ -93,7 +90,7 @@ UM.Dialog
                 {
                     text: catalog.i18nc("@action:label", "Printer settings")
                     font.bold: true
-                    width: parent.width /3
+                    width: parent.width / 3
                 }
                 Item
                 {
@@ -360,7 +357,7 @@ UM.Dialog
                     height: width
 
                     source: UM.Theme.getIcon("notice")
-                    color: "black"
+                    color: palette.text
 
                 }
                 Label
@@ -392,4 +389,4 @@ UM.Dialog
             anchors.right: parent.right
         }
     }
-}
+}

plugins/3MFReader/__init__.py

@@ -1,9 +1,16 @@
 # Copyright (c) 2015 Ultimaker B.V.
 # Cura is released under the terms of the AGPLv3 or higher.
 from typing import Dict
+import sys
+
+from UM.Logger import Logger
+try:
+    from . import ThreeMFReader
+except ImportError:
+    Logger.log("w", "Could not import ThreeMFReader; libSavitar may be missing")
 
-from . import ThreeMFReader
 from . import ThreeMFWorkspaceReader
+
 from UM.i18n import i18nCatalog
 from UM.Platform import Platform
 catalog = i18nCatalog("cura")
@@ -14,30 +21,36 @@ def getMetaData() -> Dict:
         workspace_extension = "3mf"
     else:
         workspace_extension = "curaproject.3mf"
-    return {
+
+    metaData = {
         "plugin": {
             "name": catalog.i18nc("@label", "3MF Reader"),
             "author": "Ultimaker",
             "version": "1.0",
             "description": catalog.i18nc("@info:whatsthis", "Provides support for reading 3MF files."),
             "api": 3
-        },
+        }
-        "mesh_reader": [
+    }
+    if "3MFReader.ThreeMFReader" in sys.modules:
+        metaData["mesh_reader"] = [
             {
                 "extension": "3mf",
                 "description": catalog.i18nc("@item:inlistbox", "3MF File")
             }
-        ],
+        ]
-        "workspace_reader":
+        metaData["workspace_reader"] = [
-        [
             {
                 "extension": workspace_extension,
                 "description": catalog.i18nc("@item:inlistbox", "3MF File")
             }
         ]
-    }
+    
+    return metaData
 
 
 def register(app):
-    return {"mesh_reader": ThreeMFReader.ThreeMFReader(),
+    if "3MFReader.ThreeMFReader" in sys.modules:
-            "workspace_reader": ThreeMFWorkspaceReader.ThreeMFWorkspaceReader()}
+        return {"mesh_reader": ThreeMFReader.ThreeMFReader(),
+                "workspace_reader": ThreeMFWorkspaceReader.ThreeMFWorkspaceReader()}
+    else:
+        return {}

plugins/3MFWriter/__init__.py

@@ -1,30 +1,39 @@
 # Copyright (c) 2015 Ultimaker B.V.
 # Uranium is released under the terms of the AGPLv3 or higher.
+import sys
+
+from UM.Logger import Logger
+try:
+    from . import ThreeMFWriter
+except ImportError:
+    Logger.log("w", "Could not import ThreeMFWriter; libSavitar may be missing")
+from . import ThreeMFWorkspaceWriter
 
 from UM.i18n import i18nCatalog
-from . import ThreeMFWorkspaceWriter
-from . import ThreeMFWriter
 
 i18n_catalog = i18nCatalog("uranium")
 
 def getMetaData():
-    return {
+    metaData = {
         "plugin": {
             "name": i18n_catalog.i18nc("@label", "3MF Writer"),
             "author": "Ultimaker",
             "version": "1.0",
             "description": i18n_catalog.i18nc("@info:whatsthis", "Provides support for writing 3MF files."),
             "api": 3
-        },
+        }
-        "mesh_writer": {
+    }
+
+    if "3MFWriter.ThreeMFWriter" in sys.modules:
+        metaData["mesh_writer"] = {
             "output": [{
                 "extension": "3mf",
                 "description": i18n_catalog.i18nc("@item:inlistbox", "3MF file"),
                 "mime_type": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml",
                 "mode": ThreeMFWriter.ThreeMFWriter.OutputMode.BinaryMode
             }]
-        },
+        }
-        "workspace_writer": {
+        metaData["workspace_writer"] = {
             "output": [{
                 "extension": "curaproject.3mf",
                 "description": i18n_catalog.i18nc("@item:inlistbox", "Cura Project 3MF file"),
@@ -32,7 +41,12 @@ def getMetaData():
                 "mode": ThreeMFWorkspaceWriter.ThreeMFWorkspaceWriter.OutputMode.BinaryMode
             }]
         }
-    }
+
+    return metaData
 
 def register(app):
-    return {"mesh_writer": ThreeMFWriter.ThreeMFWriter(), "workspace_writer": ThreeMFWorkspaceWriter.ThreeMFWorkspaceWriter()}
+    if "3MFWriter.ThreeMFWriter" in sys.modules:
+        return {"mesh_writer": ThreeMFWriter.ThreeMFWriter(), 
+                "workspace_writer": ThreeMFWorkspaceWriter.ThreeMFWorkspaceWriter()}
+    else:
+        return {}

plugins/ChangeLogPlugin/ChangeLog.txt

@@ -1,56 +1,54 @@
 [2.5.0]
-*Speed.
+*Improved speed
-We’ve given the system a tweak, to make changing printers, profiles, materials and print cores even quicker than ever. That means less hanging around, more time printing. We’ve also adjusted the start-up speed, which is now five seconds faster.
+We’ve made changing printers, profiles, materials, and print cores even faster. 3MF processing is also much faster now. Opening a 3MF file now takes one tenth of the time.
 
-*Speedup engine – Multi-threading.
+*Speedup engine – Multithreading
-This is one of the most significant improvements, making slicing even faster. Just like computers with multiple cores, Cura can process multiple operations at the same time. How’s that for efficient?
+Cura can process multiple operations at the same time during slicing. Supported by Windows and Linux operating systems only.
 
-*Better layout for 3D layer view options.
+*Preheat the build plate (with a connected printer)
-Need things to be a bit clearer? We’ve now incorporated an improved layer view for computers that support OpenGL 4.1. For OpenGL 2.0 we will automatically switch to the old layer view. Thanks to community member Aldo Hoeben for the fancy double handle slider.
+Users can now set the Ultimaker 3 to preheat the build plate, which reduces the downtime, allowing to manually speed up the printing workflow.
 
-*Disable automatic slicing.
+*Better layout for 3D layer view options
-Some users told us that slicing slowed down their workflow when it auto-starts, and to improve the user experience, we added an option to disable auto-slicing if required. Thanks to community member Aldo Hoeben for contributing to this one.
+An improved layer view has been implemented for computers that support OpenGL 4.1. For OpenGL 2.0 to 4.0, we will automatically switch to the old layer view.
 
-*Auto-scale off by default.
+*Disable automatic slicing
-This change needs no explanation!
+An option to disable auto-slicing has been added for the better user experience.
 
-*Preheat the build plate (with a connected printer).
+*Auto-scale off by default
-You can now set your Ultimaker 3 to preheat the build plate, which reduces the downtime, letting you manually speed up your printing workflow. All you need to do is use the ‘preheat’ function in the Print Monitor screen, and set the correct temperature for the active material(s).
+This change speaks for itself.
 
-*G-code reader.
+*Print cost calculation
-The g-code reader has been reintroduced, which means you can load g-code from file and display it in layer view. You can also print saved g-code files with Cura, share and re-use them, and you can check that your printed object looks right via the g-code viewer. Thanks to AlephObjects for this feature.
+The latest version of Cura now contains code to help users calculate the cost of their prints. To do so, users need to enter a cost per spool and an amount of materials per spool. It is also possible to set the cost per material and gain better control of the expenses. Thanks to our community member Aldo Hoeben for adding this feature.
 
-*Switching profiles.
+*G-code reader
-When you change a printing profile after customizing print settings, you have an option (shown in a popup) to transfer your customizations to the new profile or discard those modifications and continue with default settings instead. We’ve made this dialog window more informative and intuitive.
+The g-code reader has been reintroduced, which means users can load g-code from file and display it in layer view. Users can also print saved g-code files with Cura, share and re-use them, as well as preview the printed object via the g-code viewer. Thanks to AlephObjects for this feature.
 
-*Print cost calculation.
+*Discard or Keep Changes popup
-Cura now contains code to help you calculate the cost of your print. To do so, you’ll need to enter a cost per spool and an amount of materials per spool. You can also set the cost per material and gain better control of your expenses. Thanks to our community member Aldo Hoeben for adding this feature.
+We’ve changed the popup that appears when a user changes a printing profile after setting custom printing settings. It is now more informative and helpful.
 
 *Bug fixes
-
+- Window overflow: On some configurations (OS and screen dependant), an overflow on the General (Preferences) panel and the credits list on the About window occurred. This is now fixed.
-Property renaming: Properties that start with ‘get’ have been renamed to avoid confusion.
+- “Center camera when the item is selected”: This is now set to ‘off’ by default.
-Window overflow: This is now fixed.
+- Removal of file extension: When users save a file or project (without changing the file type), no file extension is added to the name. It’s only when users change to another file type that the extension is added.
-Multiple machine prefixes: Multiple machine prefixes are gone when loading and saving projects.
+- Ultimaker 3 Extended connectivity. Selecting Ultimaker 3 Extended in Cura let you connect and print with Ultimaker 3, without any warning. This now has been fixed.
-Removal of file extension: When you save a file or project (without changing the file type), no file extension is added to the name. It’s only when you change to another file type that the extension is added.
+- Different Y / Z colors: Y and Z colors in the tool menu are now similar to the colors on the build plate.
-Ultimaker 3 Extended connectivity: Selecting Ultimaker 3 Extended in Cura let you connect and print with Ultimaker 3, without any warning. This now has been fixed.
+- No collision areas: No collision areas used to be generated for some models when "keep models apart" was activated. This is now fixed.
-Different Y / Z colors: Y and Z colors in the tool menu are now different to the colors on the build plate.
+- Perimeter gaps: Perimeter gaps are not filled often enough; we’ve now amended this.
-No collision areas: No collision areas were generated for some models.
+- File location after restart: The old version of Cura didn’t remember the last opened file location after it’s been restarted. Now it has been fixed.
-Perimeter gaps: Perimeter gaps are not filled often enough; we’ve now amended this.
+- Project name: The project name changes after the project is opened. This now has been fixed.
-File location after restart: The old version of Cura didn’t remember the last opened file location after it’s been restarted. Now it does!
+- Slicing when error value is given (print core 2): When a support is printed with the Extruder 2 (PVA), some support settings will trigger a slice when an error value is given. We’ve now sorted this out.
-Project name: The project name changes after the project is opened.
+- Support Towers: Support Towers can now be disabled.
-Slicing when error value is given (print core 2): When a support is printed with extruder 2 (PVA), some support settings will trigger a slice when an error value is given. We’ve now sorted this out.
+- Support bottoms: When putting one object on top of another with some space in between, and selecting support with support bottom interface, no support bottom is printed. This has now been resolved.
-Support Towers: Support Towers can now be disabled.
+- Summary box size: We’ve enlarged the summary box when saving the project.
-Support bottoms: When putting one object on top of another with some space in between, and selecting support with support bottom interface, no support bottom is printed. This has now been resolved.
+- Cubic subdivision infill: In the past, the cubic subdivision infill sometimes didn’t produce the infill (WIN) – this has now been addressed.
-Summary box size: We’ve enlarged the summary box when saving your project.
+- Spiralize outer contour and fill small gaps: When combining Fill Gaps Between Walls with Spiralize Outer Contour, the model gets a massive infill.
-Cubic subdivision infill: In the past, the cubic subdivision infill sometimes didn’t produce the infill (WIN) – this has now been addressed.
+- Experimental post-processing plugin: Since the TweakAtZ post-processing plugin is not officially supported, we added the  ‘Experimental’ tag.
-Spiralize outer contour and fill small gaps: When combining Fill Gaps Between Walls with Spiralize Outer Contour, the model gets a massive infill.
-Experimental post-processing plugin: Since the TwaekAtZ post-processing plugin is not officially supported, we added the  ‘Experimental’ tag.
 
 *3rd party printers (bug fixes)
-
+- Folgertech printer definition has been added.
-Folgertech printer definition has been added
+- Hello BEE Prusa printer definition has been added.
-Hello BEE Prusa printer definition has been added
+- Velleman Vertex K8400 printer definitions have been added for both single-extrusion and dual-extrusion versions.
-Material profiles for Cartesio printers have been updated
+- Material profiles for Cartesio printers have been updated.
 
 [2.4.0]
 *Project saving & opening

plugins/GCodeReader/GCodeReader.py

@@ -2,6 +2,7 @@
 # Cura is released under the terms of the AGPLv3 or higher.
 
 from UM.Application import Application
+from UM.Backend import Backend
 from UM.Job import Job
 from UM.Logger import Logger
 from UM.Math.AxisAlignedBox import AxisAlignedBox
@@ -37,7 +38,6 @@ class GCodeReader(MeshReader):
         self._message = None
         self._layer_number = 0
         self._extruder_number = 0
-        self._layer_type = LayerPolygon.Inset0Type
         self._clearValues()
         self._scene_node = None
         self._position = namedtuple('Position', ['x', 'y', 'z', 'e'])
@@ -153,7 +153,6 @@ class GCodeReader(MeshReader):
                 self._previous_z = z
         else:
             path.append([x, y, z, LayerPolygon.MoveCombingType])
-
         return self._position(x, y, z, e)
 
     # G0 and G1 should be handled exactly the same.
@@ -172,7 +171,6 @@ class GCodeReader(MeshReader):
     def _gCode92(self, position, params, path):
         if params.e is not None:
             position.e[self._extruder_number] = params.e
-
         return self._position(
             params.x if params.x is not None else position.x,
             params.y if params.y is not None else position.y,
@@ -307,11 +305,11 @@ class GCodeReader(MeshReader):
                 G = self._getInt(line, "G")
                 if G is not None:
                     current_position = self._processGCode(G, line, current_position, current_path)
+
                     # < 2 is a heuristic for a movement only, that should not be counted as a layer
                     if current_position.z > last_z and abs(current_position.z - last_z) < 2:
                         if self._createPolygon(self._current_layer_thickness, current_path, self._extruder_offsets.get(self._extruder_number, [0, 0])):
                             current_path.clear()
-
                             if not self._is_layers_in_file:
                                 self._layer_number += 1
 
@@ -343,6 +341,8 @@ class GCodeReader(MeshReader):
         gcode_list_decorator.setGCodeList(gcode_list)
         scene_node.addDecorator(gcode_list_decorator)
 
+        Application.getInstance().getController().getScene().gcode_list = gcode_list
+
         Logger.log("d", "Finished parsing %s" % file_name)
         self._message.hide()
 
@@ -364,4 +364,8 @@ class GCodeReader(MeshReader):
                 "Make sure the g-code is suitable for your printer and printer configuration before sending the file to it. The g-code representation may not be accurate."), lifetime=0)
             caution_message.show()
 
+        # The "save/print" button's state is bound to the backend state.
+        backend = Application.getInstance().getBackend()
+        backend.backendStateChange.emit(Backend.BackendState.Disabled)
+
         return scene_node

plugins/ImageReader/ImageReader.py

@@ -21,7 +21,7 @@ class ImageReader(MeshReader):
         self._supported_extensions = [".jpg", ".jpeg", ".bmp", ".gif", ".png"]
         self._ui = ImageReaderUI(self)
 
-    def preRead(self, file_name):
+    def preRead(self, file_name, *args, **kwargs):
         img = QImage(file_name)
 
         if img.isNull():

plugins/LayerView/LayerView.py

@@ -1,6 +1,8 @@
 # Copyright (c) 2015 Ultimaker B.V.
 # Cura is released under the terms of the AGPLv3 or higher.
 
+import sys
+
 from UM.PluginRegistry import PluginRegistry
 from UM.View.View import View
 from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
@@ -253,8 +255,17 @@ class LayerView(View):
             if not layer_data:
                 continue
 
-            if new_max_layers < len(layer_data.getLayers()):
+            min_layer_number = sys.maxsize
-                new_max_layers = len(layer_data.getLayers()) - 1
+            max_layer_number = -sys.maxsize
+            for layer_id in layer_data.getLayers():
+                if max_layer_number < layer_id:
+                    max_layer_number = layer_id
+                if min_layer_number > layer_id:
+                    min_layer_number = layer_id
+            layer_count = max_layer_number - min_layer_number
+
+            if new_max_layers < layer_count:
+                new_max_layers = layer_count
 
         if new_max_layers > 0 and new_max_layers != self._old_max_layers:
             self._max_layers = new_max_layers

plugins/LayerView/LayerView.qml

@@ -351,7 +351,7 @@ Item
             property bool roundValues: true
 
             property var activeHandle: upperHandle
-            property bool layersVisible: UM.LayerView.layerActivity && Printer.platformActivity ? true : false
+            property bool layersVisible: UM.LayerView.layerActivity && CuraApplication.platformActivity ? true : false
 
             function getUpperValueFromHandle()
             {

plugins/RemovableDriveOutputDevice/RemovableDriveOutputDevice.py

@@ -91,7 +91,7 @@ class RemovableDriveOutputDevice(OutputDevice):
 
             self.writeStarted.emit(self)
 
-            job._message = message
+            job.setMessage(message)
             self._writing = True
             job.start()
         except PermissionError as e:
@@ -118,8 +118,6 @@ class RemovableDriveOutputDevice(OutputDevice):
         raise OutputDeviceError.WriteRequestFailedError("Could not find a file name when trying to write to {device}.".format(device = self.getName()))
 
     def _onProgress(self, job, progress):
-        if hasattr(job, "_message"):
-            job._message.setProgress(progress)
         self.writeProgress.emit(self, progress)
 
     def _onFinished(self, job):
@@ -128,10 +126,6 @@ class RemovableDriveOutputDevice(OutputDevice):
             self._stream.close()
             self._stream = None
 
-        if hasattr(job, "_message"):
-            job._message.hide()
-            job._message = None
-
         self._writing = False
         self.writeFinished.emit(self)
         if job.getResult():

plugins/UM3NetworkPrinting/DiscoverUM3Action.py

@@ -35,6 +35,7 @@ class DiscoverUM3Action(MachineAction):
     @pyqtSlot()
     def startDiscovery(self):
         if not self._network_plugin:
+            Logger.log("d", "Starting printer discovery.")
             self._network_plugin = Application.getInstance().getOutputDeviceManager().getOutputDevicePlugin("UM3NetworkPrinting")
             self._network_plugin.printerListChanged.connect(self._onPrinterDiscoveryChanged)
             self.printersChanged.emit()
@@ -42,6 +43,7 @@ class DiscoverUM3Action(MachineAction):
     ##  Re-filters the list of printers.
     @pyqtSlot()
     def reset(self):
+        Logger.log("d", "Reset the list of found printers.")
         self.printersChanged.emit()
 
     @pyqtSlot()
@@ -95,12 +97,14 @@ class DiscoverUM3Action(MachineAction):
 
     @pyqtSlot(str)
     def setKey(self, key):
+        Logger.log("d", "Attempting to set the network key of the active machine to %s", key)
         global_container_stack = Application.getInstance().getGlobalContainerStack()
         if global_container_stack:
             meta_data = global_container_stack.getMetaData()
             if "um_network_key" in meta_data:
                 global_container_stack.setMetaDataEntry("um_network_key", key)
                 # Delete old authentication data.
+                Logger.log("d", "Removing old authentication id %s for device %s", global_container_stack.getMetaDataEntry("network_authentication_id", None), key)
                 global_container_stack.removeMetaDataEntry("network_authentication_id")
                 global_container_stack.removeMetaDataEntry("network_authentication_key")
             else:

plugins/UM3NetworkPrinting/NetworkPrinterOutputDevice.py

@@ -200,11 +200,11 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
 
     def _onAuthenticationRequired(self, reply, authenticator):
         if self._authentication_id is not None and self._authentication_key is not None:
-            Logger.log("d", "Authentication was required. Setting up authenticator with ID %s",self._authentication_id )
+            Logger.log("d", "Authentication was required. Setting up authenticator with ID %s and key", self._authentication_id, self._getSafeAuthKey())
             authenticator.setUser(self._authentication_id)
             authenticator.setPassword(self._authentication_key)
         else:
-            Logger.log("d", "No authentication was required. The ID is: %s", self._authentication_id)
+            Logger.log("d", "No authentication is available to use, but we did got a request for it.")
 
     def getProperties(self):
         return self._properties
@@ -619,64 +619,67 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
         self._gcode = getattr(Application.getInstance().getController().getScene(), "gcode_list")
 
         print_information = Application.getInstance().getPrintInformation()
-
-        # Check if print cores / materials are loaded at all. Any failure in these results in an Error.
-        for index in range(0, self._num_extruders):
-            if print_information.materialLengths[index] != 0:
-                if self._json_printer_state["heads"][0]["extruders"][index]["hotend"]["id"] == "":
-                    Logger.log("e", "No cartridge loaded in slot %s, unable to start print", index + 1)
-                    self._error_message = Message(
-                        i18n_catalog.i18nc("@info:status", "Unable to start a new print job. No PrinterCore loaded in slot {0}".format(index + 1)))
-                    self._error_message.show()
-                    return
-                if self._json_printer_state["heads"][0]["extruders"][index]["active_material"]["guid"] == "":
-                    Logger.log("e", "No material loaded in slot %s, unable to start print", index + 1)
-                    self._error_message = Message(
-                        i18n_catalog.i18nc("@info:status",
-                                           "Unable to start a new print job. No material loaded in slot {0}".format(index + 1)))
-                    self._error_message.show()
-                    return
-
         warnings = []  # There might be multiple things wrong. Keep a list of all the stuff we need to warn about.
 
-        for index in range(0, self._num_extruders):
+        # Only check for mistakes if there is material length information.
-            # Check if there is enough material. Any failure in these results in a warning.
+        if print_information.materialLengths:
-            material_length = self._json_printer_state["heads"][0]["extruders"][index]["active_material"]["length_remaining"]
+            # Check if print cores / materials are loaded at all. Any failure in these results in an Error.
-            if material_length != -1 and print_information.materialLengths[index] > material_length:
+            for index in range(0, self._num_extruders):
-                Logger.log("w", "Printer reports that there is not enough material left for extruder %s. We need %s and the printer has %s", index + 1, print_information.materialLengths[index], material_length)
+                if index < len(print_information.materialLengths) and print_information.materialLengths[index] != 0:
-                warnings.append(i18n_catalog.i18nc("@label", "Not enough material for spool {0}.").format(index+1))
+                    if self._json_printer_state["heads"][0]["extruders"][index]["hotend"]["id"] == "":
+                        Logger.log("e", "No cartridge loaded in slot %s, unable to start print", index + 1)
+                        self._error_message = Message(
+                            i18n_catalog.i18nc("@info:status", "Unable to start a new print job. No PrinterCore loaded in slot {0}".format(index + 1)))
+                        self._error_message.show()
+                        return
+                    if self._json_printer_state["heads"][0]["extruders"][index]["active_material"]["guid"] == "":
+                        Logger.log("e", "No material loaded in slot %s, unable to start print", index + 1)
+                        self._error_message = Message(
+                            i18n_catalog.i18nc("@info:status",
+                                               "Unable to start a new print job. No material loaded in slot {0}".format(index + 1)))
+                        self._error_message.show()
+                        return
 
-            # Check if the right cartridges are loaded. Any failure in these results in a warning.
+            for index in range(0, self._num_extruders):
-            extruder_manager = cura.Settings.ExtruderManager.ExtruderManager.getInstance()
+                # Check if there is enough material. Any failure in these results in a warning.
-            if print_information.materialLengths[index] != 0:
+                material_length = self._json_printer_state["heads"][0]["extruders"][index]["active_material"]["length_remaining"]
-                variant = extruder_manager.getExtruderStack(index).findContainer({"type": "variant"})
+                if material_length != -1 and index < len(print_information.materialLengths) and print_information.materialLengths[index] > material_length:
-                core_name = self._json_printer_state["heads"][0]["extruders"][index]["hotend"]["id"]
+                    Logger.log("w", "Printer reports that there is not enough material left for extruder %s. We need %s and the printer has %s", index + 1, print_information.materialLengths[index], material_length)
-                if variant:
+                    warnings.append(i18n_catalog.i18nc("@label", "Not enough material for spool {0}.").format(index+1))
-                    if variant.getName() != core_name:
-                        Logger.log("w", "Extruder %s has a different Cartridge (%s) as Cura (%s)", index + 1, core_name, variant.getName())
-                        warnings.append(i18n_catalog.i18nc("@label", "Different print core (Cura: {0}, Printer: {1}) selected for extruder {2}".format(variant.getName(), core_name, index + 1)))
 
-                material = extruder_manager.getExtruderStack(index).findContainer({"type": "material"})
+                # Check if the right cartridges are loaded. Any failure in these results in a warning.
-                if material:
+                extruder_manager = cura.Settings.ExtruderManager.ExtruderManager.getInstance()
-                    remote_material_guid = self._json_printer_state["heads"][0]["extruders"][index]["active_material"]["guid"]
+                if index < len(print_information.materialLengths) and print_information.materialLengths[index] != 0:
-                    if material.getMetaDataEntry("GUID") != remote_material_guid:
+                    variant = extruder_manager.getExtruderStack(index).findContainer({"type": "variant"})
-                        Logger.log("w", "Extruder %s has a different material (%s) as Cura (%s)", index + 1,
+                    core_name = self._json_printer_state["heads"][0]["extruders"][index]["hotend"]["id"]
-                                   remote_material_guid,
+                    if variant:
-                                   material.getMetaDataEntry("GUID"))
+                        if variant.getName() != core_name:
+                            Logger.log("w", "Extruder %s has a different Cartridge (%s) as Cura (%s)", index + 1, core_name, variant.getName())
+                            warnings.append(i18n_catalog.i18nc("@label", "Different print core (Cura: {0}, Printer: {1}) selected for extruder {2}".format(variant.getName(), core_name, index + 1)))
 
-                        remote_materials = UM.Settings.ContainerRegistry.ContainerRegistry.getInstance().findInstanceContainers(type = "material", GUID = remote_material_guid, read_only = True)
+                    material = extruder_manager.getExtruderStack(index).findContainer({"type": "material"})
-                        remote_material_name = "Unknown"
+                    if material:
-                        if remote_materials:
+                        remote_material_guid = self._json_printer_state["heads"][0]["extruders"][index]["active_material"]["guid"]
-                            remote_material_name = remote_materials[0].getName()
+                        if material.getMetaDataEntry("GUID") != remote_material_guid:
-                        warnings.append(i18n_catalog.i18nc("@label", "Different material (Cura: {0}, Printer: {1}) selected for extruder {2}").format(material.getName(), remote_material_name, index + 1))
+                            Logger.log("w", "Extruder %s has a different material (%s) as Cura (%s)", index + 1,
+                                       remote_material_guid,
+                                       material.getMetaDataEntry("GUID"))
 
-                try:
+                            remote_materials = UM.Settings.ContainerRegistry.ContainerRegistry.getInstance().findInstanceContainers(type = "material", GUID = remote_material_guid, read_only = True)
-                    is_offset_calibrated = self._json_printer_state["heads"][0]["extruders"][index]["hotend"]["offset"]["state"] == "valid"
+                            remote_material_name = "Unknown"
-                except KeyError:  # Older versions of the API don't expose the offset property, so we must asume that all is well.
+                            if remote_materials:
-                    is_offset_calibrated = True
+                                remote_material_name = remote_materials[0].getName()
+                            warnings.append(i18n_catalog.i18nc("@label", "Different material (Cura: {0}, Printer: {1}) selected for extruder {2}").format(material.getName(), remote_material_name, index + 1))
 
-                if not is_offset_calibrated:
+                    try:
-                    warnings.append(i18n_catalog.i18nc("@label", "Print core {0} is not properly calibrated. XY calibration needs to be performed on the printer.").format(index + 1))
+                        is_offset_calibrated = self._json_printer_state["heads"][0]["extruders"][index]["hotend"]["offset"]["state"] == "valid"
+                    except KeyError:  # Older versions of the API don't expose the offset property, so we must asume that all is well.
+                        is_offset_calibrated = True
+
+                    if not is_offset_calibrated:
+                        warnings.append(i18n_catalog.i18nc("@label", "Print core {0} is not properly calibrated. XY calibration needs to be performed on the printer.").format(index + 1))
+        else:
+            Logger.log("w", "There was no material usage found. No check to match used material with machine is done.")
 
         if warnings:
             text = i18n_catalog.i18nc("@label", "Are you sure you wish to print with the selected configuration?")
@@ -713,7 +716,8 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
 
     ##  Start requesting data from printer
     def connect(self):
-        self.close()  # Ensure that previous connection (if any) is killed.
+        if self.isConnected():
+            self.close()  # Close previous connection
 
         self._createNetworkManager()
 
@@ -726,7 +730,12 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
         ## Check if this machine was authenticated before.
         self._authentication_id = Application.getInstance().getGlobalContainerStack().getMetaDataEntry("network_authentication_id", None)
         self._authentication_key = Application.getInstance().getGlobalContainerStack().getMetaDataEntry("network_authentication_key", None)
-        Logger.log("d", "Loaded authentication id %s from the metadata entry", self._authentication_id)
+
+        if self._authentication_id is None and self._authentication_key is None:
+            Logger.log("d", "No authentication found in metadata.")
+        else:
+            Logger.log("d", "Loaded authentication id %s and key %s from the metadata entry", self._authentication_id, self._getSafeAuthKey())
+
         self._update_timer.start()
 
     ##  Stop requesting data from printer
@@ -788,19 +797,41 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
             Logger.log("d", "Started sending g-code to remote printer.")
             self._compressing_print = True
             ## Mash the data into single string
+
+            max_chars_per_line = 1024 * 1024 / 4  # 1 / 4  MB
+
             byte_array_file_data = b""
+            batched_line = ""
+
+            def _compress_data_and_notify_qt(data_to_append):
+                compressed_data = gzip.compress(data_to_append.encode("utf-8"))
+                QCoreApplication.processEvents()  # Ensure that the GUI does not freeze.
+                # Pretend that this is a response, as zipping might take a bit of time.
+                self._last_response_time = time()
+                return compressed_data
+
             for line in self._gcode:
                 if not self._compressing_print:
                     self._progress_message.hide()
                     return  # Stop trying to zip, abort was called.
+
                 if self._use_gzip:
-                    byte_array_file_data += gzip.compress(line.encode("utf-8"))
+                    batched_line += line
-                    QCoreApplication.processEvents()  # Ensure that the GUI does not freeze.
+                    # if the gcode was read from a gcode file, self._gcode will be a list of all lines in that file.
-                    # Pretend that this is a response, as zipping might take a bit of time.
+                    # Compressing line by line in this case is extremely slow, so we need to batch them.
-                    self._last_response_time = time()
+                    if len(batched_line) < max_chars_per_line:
+                        continue
+
+                    byte_array_file_data += _compress_data_and_notify_qt(batched_line)
+                    batched_line = ""
                 else:
                     byte_array_file_data += line.encode("utf-8")
 
+            # don't miss the last batch if it's there
+            if self._use_gzip:
+                if batched_line:
+                    byte_array_file_data += _compress_data_and_notify_qt(batched_line)
+
             if self._use_gzip:
                 file_name = "%s.gcode.gz" % Application.getInstance().getPrintInformation().jobName
             else:
@@ -842,7 +873,7 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
 
     ##  Check if the authentication request was allowed by the printer.
     def _checkAuthentication(self):
-        Logger.log("d", "Checking if authentication is correct for id %s", self._authentication_id)
+        Logger.log("d", "Checking if authentication is correct for id %s and key %s", self._authentication_id, self._getSafeAuthKey())
         self._manager.get(QNetworkRequest(QUrl("http://" + self._address + self._api_prefix + "auth/check/" + str(self._authentication_id))))
 
     ##  Request a authentication key from the printer so we can be authenticated
@@ -850,8 +881,10 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
         url = QUrl("http://" + self._address + self._api_prefix + "auth/request")
         request = QNetworkRequest(url)
         request.setHeader(QNetworkRequest.ContentTypeHeader, "application/json")
-        self.setAuthenticationState(AuthState.AuthenticationRequested)
+        self._authentication_key = None
+        self._authentication_id = None
         self._manager.post(request, json.dumps({"application": "Cura-" + Application.getInstance().getVersion(), "user": self._getUserName()}).encode())
+        self.setAuthenticationState(AuthState.AuthenticationRequested)
 
     ##  Send all material profiles to the printer.
     def sendMaterialProfiles(self):
@@ -921,7 +954,11 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
                 if status_code == 200:
                     if self._connection_state == ConnectionState.connecting:
                         self.setConnectionState(ConnectionState.connected)
-                    self._json_printer_state = json.loads(bytes(reply.readAll()).decode("utf-8"))
+                    try:
+                        self._json_printer_state = json.loads(bytes(reply.readAll()).decode("utf-8"))
+                    except json.decoder.JSONDecodeError:
+                        Logger.log("w", "Received an invalid printer state message: Not valid JSON.")
+                        return
                     self._spliceJSONData()
 
                     # Hide connection error message if the connection was restored
@@ -933,7 +970,11 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
                     pass  # TODO: Handle errors
             elif "print_job" in reply_url:  # Status update from print_job:
                 if status_code == 200:
-                    json_data = json.loads(bytes(reply.readAll()).decode("utf-8"))
+                    try:
+                        json_data = json.loads(bytes(reply.readAll()).decode("utf-8"))
+                    except json.decoder.JSONDecodeError:
+                        Logger.log("w", "Received an invalid print job state message: Not valid JSON.")
+                        return
                     progress = json_data["progress"]
                     ## If progress is 0 add a bit so another print can't be sent.
                     if progress == 0:
@@ -1011,13 +1052,17 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
                         else:
                             global_container_stack.addMetaDataEntry("network_authentication_id", self._authentication_id)
                     Application.getInstance().saveStack(global_container_stack)  # Force save so we are sure the data is not lost.
-                    Logger.log("i", "Authentication succeeded for id %s", self._authentication_id)
+                    Logger.log("i", "Authentication succeeded for id %s and key %s", self._authentication_id, self._getSafeAuthKey())
                 else:  # Got a response that we didn't expect, so something went wrong.
                     Logger.log("e", "While trying to authenticate, we got an unexpected response: %s", reply.attribute(QNetworkRequest.HttpStatusCodeAttribute))
                     self.setAuthenticationState(AuthState.NotAuthenticated)
 
             elif "auth/check" in reply_url:  # Check if we are authenticated (user can refuse this!)
-                data = json.loads(bytes(reply.readAll()).decode("utf-8"))
+                try:
+                    data = json.loads(bytes(reply.readAll()).decode("utf-8"))
+                except json.decoder.JSONDecodeError:
+                    Logger.log("w", "Received an invalid authentication check from printer: Not valid JSON.")
+                    return
                 if data.get("message", "") == "authorized":
                     Logger.log("i", "Authentication was approved")
                     self._verifyAuthentication()  # Ensure that the verification is really used and correct.
@@ -1030,8 +1075,11 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
         elif reply.operation() == QNetworkAccessManager.PostOperation:
             if "/auth/request" in reply_url:
                 # We got a response to requesting authentication.
-                data = json.loads(bytes(reply.readAll()).decode("utf-8"))
+                try:
-
+                    data = json.loads(bytes(reply.readAll()).decode("utf-8"))
+                except json.decoder.JSONDecodeError:
+                    Logger.log("w", "Received an invalid authentication request reply from printer: Not valid JSON.")
+                    return
                 global_container_stack = Application.getInstance().getGlobalContainerStack()
                 if global_container_stack:  # Remove any old data.
                     Logger.log("d", "Removing old network authentication data as a new one was requested.")
@@ -1041,7 +1089,7 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
 
                 self._authentication_key = data["key"]
                 self._authentication_id = data["id"]
-                Logger.log("i", "Got a new authentication ID. Waiting for authorization: %s", self._authentication_id )
+                Logger.log("i", "Got a new authentication ID (%s) and KEY (%S). Waiting for authorization.", self._authentication_id, self._getSafeAuthKey())
 
                 # Check if the authentication is accepted.
                 self._checkAuthentication()
@@ -1111,3 +1159,12 @@ class NetworkPrinterOutputDevice(PrinterOutputDevice):
             icon=QMessageBox.Question,
             callback=callback
         )
+
+    ##  Convenience function to "blur" out all but the last 5 characters of the auth key.
+    #   This can be used to debug print the key, without it compromising the security.
+    def _getSafeAuthKey(self):
+        if self._authentication_key is not None:
+            result = self._authentication_key[-5:]
+            result = "********" + result
+            return result
+        return self._authentication_key

plugins/UM3NetworkPrinting/NetworkPrinterOutputDevicePlugin.py

@@ -157,12 +157,14 @@ class NetworkPrinterOutputDevicePlugin(OutputDevicePlugin):
 
         for key in self._printers:
             if key == active_machine.getMetaDataEntry("um_network_key"):
-                Logger.log("d", "Connecting [%s]..." % key)
+                if not self._printers[key].isConnected():
-                self._printers[key].connect()
+                    Logger.log("d", "Connecting [%s]..." % key)
-                self._printers[key].connectionStateChanged.connect(self._onPrinterConnectionStateChanged)
+                    self._printers[key].connect()
+                    self._printers[key].connectionStateChanged.connect(self._onPrinterConnectionStateChanged)
             else:
                 if self._printers[key].isConnected():
                     Logger.log("d", "Closing connection [%s]..." % key)
+                    self._printers[key].connectionStateChanged.disconnect(self._onPrinterConnectionStateChanged)
                     self._printers[key].close()
 
     ##  Because the model needs to be created in the same thread as the QMLEngine, we use a signal.

plugins/USBPrinting/USBPrinterOutputDevice.py

@@ -19,8 +19,8 @@ from PyQt5.QtCore import QUrl, pyqtSlot, pyqtSignal, pyqtProperty
 from UM.i18n import i18nCatalog
 catalog = i18nCatalog("cura")
 
-class USBPrinterOutputDevice(PrinterOutputDevice):
 
+class USBPrinterOutputDevice(PrinterOutputDevice):
     def __init__(self, serial_port):
         super().__init__(serial_port)
         self.setName(catalog.i18nc("@item:inmenu", "USB printing"))
@@ -202,6 +202,7 @@ class USBPrinterOutputDevice(PrinterOutputDevice):
         try:
             programmer.connect(self._serial_port)
         except Exception:
+            programmer.close()
             pass
 
         # Give programmer some time to connect. Might need more in some cases, but this worked in all tested cases.
@@ -312,8 +313,10 @@ class USBPrinterOutputDevice(PrinterOutputDevice):
             programmer.connect(self._serial_port) # Connect with the serial, if this succeeds, it's an arduino based usb device.
             self._serial = programmer.leaveISP()
         except ispBase.IspError as e:
+            programmer.close()
             Logger.log("i", "Could not establish connection on %s: %s. Device is not arduino based." %(self._serial_port,str(e)))
         except Exception as e:
+            programmer.close()
             Logger.log("i", "Could not establish connection on %s, unknown reasons.  Device is not arduino based." % self._serial_port)
 
         # If the programmer connected, we know its an atmega based version.
@@ -559,6 +562,11 @@ class USBPrinterOutputDevice(PrinterOutputDevice):
         if ";" in line:
             line = line[:line.find(";")]
         line = line.strip()
+
+        # Don't send empty lines. But we do have to send something, so send m105 instead.
+        if line == "":
+            line = "M105"
+
         try:
             if line == "M0" or line == "M1":
                 line = "M105"  # Don't send the M0 or M1 to the machine, as M0 and M1 are handled as an LCD menu pause.

plugins/USBPrinting/USBPrinterOutputDeviceManager.py

@@ -236,8 +236,7 @@ class USBPrinterOutputDeviceManager(QObject, OutputDevicePlugin, Extension):
                 self.getOutputDeviceManager().removeOutputDevice(serial_port)
             self.connectionStateChanged.emit()
         except KeyError:
-            pass  # no output device by this device_id found in connection list.
+            Logger.log("w", "Connection state of %s changed, but it was not found in the list")
-
 
     @pyqtProperty(QObject , notify = connectionStateChanged)
     def connectedPrinterList(self):

resources/definitions/cartesio.def.json

@@ -12,6 +12,9 @@
         "has_machine_materials": true,
         "has_variants": true,
         "variants_name": "Nozzle size",
+        "preferred_variant": "*0.4*",
+        "preferred_material": "*pla*",
+        "preferred_quality": "*draft*",
         "machine_extruder_trains":
         {
             "0": "cartesio_extruder_0",
@@ -29,16 +32,27 @@
         "machine_extruder_count": { "default_value": 4 },
         "machine_heated_bed": { "default_value": true },
         "machine_center_is_zero": { "default_value": false },
+        "gantry_height": { "default_value": 35 },
         "machine_height": { "default_value": 400 },
         "machine_depth": { "default_value": 270 },
         "machine_width": { "default_value": 430 },
         "machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },
+        "material_print_temp_wait": { "default_value": false },
+        "material_bed_temp_wait": { "default_value": false },
+        "infill_pattern": { "default_value": "grid"},
+        "prime_tower_enable": { "default_value": true },
+        "prime_tower_wall_thickness": { "resolve": 0.7 },
+        "prime_tower_position_x": { "default_value": 30 },
+        "prime_tower_position_y": { "default_value": 71 },
         "machine_start_gcode": {
-            "default_value": "M92 E159\nG21\nG90\nM42 S255 P13;chamber lights\nM42 S255 P12;fume extraction\nM140 S{material_bed_temperature}\n\nM117 Homing Y ......\nG28 Y\nM117 Homing X ......\nG28 X\nM117 Homing Z ......\nG28 Z F100\nG1 Z10 F600\nG1 X70 Y20 F9000;go to wipe point\n\nM190 S{material_bed_temperature}\nM104 S120 T1\nM109 S{material_print_temperature} T0\nM104 S21 T1\n\nM117 purging nozzle....\n\nT0\nG92 E0;set E\nG1 E10 F100\nG92 E0\nG1 E-{retraction_amount} F600\nG92 E0\n\nM117 wiping nozzle....\n\nG1 X1 Y24 F3000\nG1 X70 F9000\n\nM117 Printing .....\n\nG1 E1 F100\nG92 E-1\n"
+            "default_value": "\nM104 S120 T1\nM104 S120 T2\nM104 S120 T3\n\nM92 E159\n\nG21\nG90\nM42 S255 P13;chamber lights\nM42 S255 P12;fume extraction\n\nM117 Homing Y ......\nG28 Y\nM117 Homing X ......\nG28 X\nM117 Homing Z ......\nG28 Z F100\nG1 Z10 F600\nG1 X70 Y20 F9000;go to wipe point\n\nM190 S{material_bed_temperature_layer_0}\n\nM117 Heating for 50 sec.\nG4 S20\nM117 Heating for 30 sec.\nG4 S20\nM117 Heating for 10 sec.\nM300 S600 P1000\nG4 S9\n\nM117 purging nozzle....\nT0\nG92 E0;set E\nG1 E10 F100\nG92 E0\nG1 E-1 F600\n\nM117 wiping nozzle....\nG1 X1 Y24 F3000\nG1 X70 F9000\n\nM104 S21 T1\nM104 S21 T2\nM104 S21 T3\n\nM117 Printing .....\n"
         },
         "machine_end_gcode": {
-            "default_value": "; -- END GCODE --\nM106 S255\nM140 S5\nM104 S5 T0\nM104 S5 T1\nG1 X20.0 Y260.0 F6000\nG4 S7\nM84\nG4 S90\nM107\nM42 P12 S0\nM42 P13 S0\nM84\n; -- end of END GCODE --"
+            "default_value": "; -- END GCODE --\nM106 S255\nM140 S5\nM104 S5 T0\nM104 S5 T1\nM104 S5 T2\nM104 S5 T3\nG1 X20.0 Y260.0 F6000\nG4 S7\nM84\nG4 S90\nM107\nM42 P12 S0\nM42 P13 S0\nM84\nT0\n; -- end of GCODE --"
         },
+        "layer_height": { "maximum_value": "(0.8 * min(extruderValues('machine_nozzle_size')))" },
+        "layer_height_0": { "maximum_value": "(0.8 * min(extruderValues('machine_nozzle_size')))" },
+        "layer_height_0": { "resolve": "0.2 if min(extruderValues('machine_nozzle_size')) < 0.3 else 0.3 "},
         "machine_nozzle_heat_up_speed": {"default_value": 20},
         "machine_nozzle_cool_down_speed": {"default_value": 20},
         "machine_min_cool_heat_time_window": {"default_value": 5}

resources/definitions/fdmprinter.def.json

@@ -635,7 +635,7 @@
                     "description": "Width of a single line. Generally, the width of each line should correspond to the width of the nozzle. However, slightly reducing this value could produce better prints.",
                     "unit": "mm",
                     "minimum_value": "0.001",
-                    "minimum_value_warning": "0.5 * machine_nozzle_size",
+                    "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                     "maximum_value_warning": "2 * machine_nozzle_size",
                     "default_value": 0.4,
                     "type": "float",
@@ -649,7 +649,7 @@
                             "description": "Width of a single wall line.",
                             "unit": "mm",
                             "minimum_value": "0.001",
-                            "minimum_value_warning": "0.75 * machine_nozzle_size",
+                            "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                             "maximum_value_warning": "2 * machine_nozzle_size",
                             "value": "line_width",
                             "default_value": 0.4,
@@ -663,7 +663,7 @@
                                     "description": "Width of the outermost wall line. By lowering this value, higher levels of detail can be printed.",
                                     "unit": "mm",
                                     "minimum_value": "0.001",
-                                    "minimum_value_warning": "0.75 * machine_nozzle_size if outer_inset_first else 0.1 * machine_nozzle_size",
+                                    "minimum_value_warning": "(0.1 + 0.4 * machine_nozzle_size) if outer_inset_first else 0.1 * machine_nozzle_size",
                                     "maximum_value_warning": "2 * machine_nozzle_size",
                                     "default_value": 0.4,
                                     "value": "wall_line_width",
@@ -676,7 +676,7 @@
                                     "description": "Width of a single wall line for all wall lines except the outermost one.",
                                     "unit": "mm",
                                     "minimum_value": "0.001",
-                                    "minimum_value_warning": "0.5 * machine_nozzle_size",
+                                    "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                                     "maximum_value_warning": "2 * machine_nozzle_size",
                                     "default_value": 0.4,
                                     "value": "wall_line_width",
@@ -691,7 +691,7 @@
                             "description": "Width of a single top/bottom line.",
                             "unit": "mm",
                             "minimum_value": "0.001",
-                            "minimum_value_warning": "0.1 * machine_nozzle_size",
+                            "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                             "maximum_value_warning": "2 * machine_nozzle_size",
                             "default_value": 0.4,
                             "type": "float",
@@ -704,7 +704,7 @@
                             "description": "Width of a single infill line.",
                             "unit": "mm",
                             "minimum_value": "0.001",
-                            "minimum_value_warning": "0.75 * machine_nozzle_size",
+                            "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                             "maximum_value_warning": "3 * machine_nozzle_size",
                             "default_value": 0.4,
                             "type": "float",
@@ -718,7 +718,7 @@
                             "description": "Width of a single skirt or brim line.",
                             "unit": "mm",
                             "minimum_value": "0.001",
-                            "minimum_value_warning": "0.75 * machine_nozzle_size",
+                            "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                             "maximum_value_warning": "3 * machine_nozzle_size",
                             "default_value": 0.4,
                             "type": "float",
@@ -733,7 +733,7 @@
                             "description": "Width of a single support structure line.",
                             "unit": "mm",
                             "minimum_value": "0.001",
-                            "minimum_value_warning": "0.75 * machine_nozzle_size",
+                            "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                             "maximum_value_warning": "3 * machine_nozzle_size",
                             "default_value": 0.4,
                             "type": "float",
@@ -750,7 +750,7 @@
                             "unit": "mm",
                             "default_value": 0.4,
                             "minimum_value": "0.001",
-                            "minimum_value_warning": "0.4 * machine_nozzle_size",
+                            "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                             "maximum_value_warning": "2 * machine_nozzle_size",
                             "type": "float",
                             "enabled": "support_enable and support_interface_enable",
@@ -804,7 +804,7 @@
                             "default_value": 0.4,
                             "value": "line_width",
                             "minimum_value": "0.001",
-                            "minimum_value_warning": "0.75 * machine_nozzle_size",
+                            "minimum_value_warning": "0.1 + 0.4 * machine_nozzle_size",
                             "maximum_value_warning": "2 * machine_nozzle_size",
                             "settable_per_mesh": false,
                             "settable_per_extruder": true
@@ -1122,7 +1122,7 @@
                             "default_value": 2,
                             "minimum_value": "0",
                             "minimum_value_warning": "infill_line_width",
-                            "value": "0 if infill_sparse_density == 0 else (infill_line_width * 100) / infill_sparse_density * (2 if infill_pattern == 'grid' else (3 if infill_pattern == 'triangles' or infill_pattern == 'cubic' or infill_pattern == 'cubicsubdiv' else (4 if infill_pattern == 'tetrahedral' else 1)))",
+                            "value": "0 if infill_sparse_density == 0 else (infill_line_width * 100) / infill_sparse_density * (2 if infill_pattern == 'grid' else (3 if infill_pattern == 'triangles' or infill_pattern == 'cubic' or infill_pattern == 'cubicsubdiv' else (2 if infill_pattern == 'tetrahedral' else 1)))",
                             "settable_per_mesh": true
                         }
                     }
@@ -1156,6 +1156,65 @@
                     "type": "[int]",
                     "default_value": "[ ]",
                     "enabled": "infill_pattern != 'concentric' and infill_pattern != 'concentric_3d' and infill_pattern != 'cubicsubdiv'",
+                    "enabled": "infill_sparse_density > 0",
+                    "settable_per_mesh": true
+                },
+                "spaghetti_infill_enabled":
+                {
+                    "label": "Spaghetti Infill",
+                    "description": "Print the infill every so often, so that the filament will curl up chaotically inside the object. This reduces print time, but the behaviour is rather unpredictable.",
+                    "type": "bool",
+                    "default_value": false,
+                    "enabled": "infill_sparse_density > 0",
+                    "settable_per_mesh": true
+                },
+                "spaghetti_max_infill_angle":
+                {
+                    "label": "Spaghetti Maximum Infill Angle",
+                    "description": "The maximum angle w.r.t. the Z axis of the inside of the print for areas which are to be filled with spaghetti infill afterwards. Lowering this value causes more angled parts in your model to be filled on each layer.",
+                    "unit": "°",
+                    "type": "float",
+                    "default_value": 10,
+                    "minimum_value": "0",
+                    "maximum_value": "90",
+                    "maximum_value_warning": "45",
+                    "enabled": "infill_sparse_density > 0 and spaghetti_infill_enabled",
+                    "settable_per_mesh": true
+                },
+                "spaghetti_max_height":
+                {
+                    "label": "Spaghetti Infill Maximum Height",
+                    "description": "The maximum height of inside space which can be combined and filled from the top.",
+                    "unit": "mm",
+                    "type": "float",
+                    "default_value": 2.0,
+                    "minimum_value": "layer_height",
+                    "maximum_value_warning": "10.0",
+                    "enabled": "infill_sparse_density > 0 and spaghetti_infill_enabled",
+                    "settable_per_mesh": true
+                },
+                "spaghetti_inset":
+                {
+                    "label": "Spaghetti Inset",
+                    "description": "The offset from the walls from where the spaghetti infill will be printed.",
+                    "unit": "mm",
+                    "type": "float",
+                    "default_value": 0.2,
+                    "minimum_value_warning": "0",
+                    "maximum_value_warning": "5.0",
+                    "enabled": "infill_sparse_density > 0 and spaghetti_infill_enabled",
+                    "settable_per_mesh": true
+                },
+                "spaghetti_flow":
+                {
+                    "label": "Spaghetti Flow",
+                    "description": "Adjusts the density of the spaghetti infill. Note that the Infill Density only controls the line spacing of the filling pattern, not the amount of extrusion for spaghetti infill.",
+                    "unit": "%",
+                    "type": "float",
+                    "default_value": 20,
+                    "minimum_value": "0",
+                    "maximum_value_warning": "100",
+                    "enabled": "infill_sparse_density > 0 and spaghetti_infill_enabled",
                     "settable_per_mesh": true
                 },
                 "sub_div_rad_mult":
@@ -1264,9 +1323,9 @@
                     "default_value": 0.1,
                     "minimum_value": "resolveOrValue('layer_height')",
                     "maximum_value_warning": "0.75 * machine_nozzle_size",
-                    "maximum_value": "resolveOrValue('layer_height') * 8",
+                    "maximum_value": "resolveOrValue('layer_height') * (1.45 if spaghetti_infill_enabled else 8)",
                     "value": "resolveOrValue('layer_height')",
-                    "enabled": "infill_sparse_density > 0",
+                    "enabled": "infill_sparse_density > 0 and not spaghetti_infill_enabled",
                     "settable_per_mesh": true
                 },
                 "gradual_infill_steps":
@@ -1277,8 +1336,8 @@
                     "type": "int",
                     "minimum_value": "0",
                     "maximum_value_warning": "4",
-                    "maximum_value": "(20 - math.log(infill_line_distance) / math.log(2)) if infill_line_distance > 0 else 0",
+                    "maximum_value": "(20 - math.log(infill_line_distance) / math.log(2)) if infill_line_distance > 0 and not spaghetti_infill_enabled else 0",
-                    "enabled": "infill_sparse_density > 0 and infill_pattern != 'cubicsubdiv'",
+                    "enabled": "infill_sparse_density > 0 and infill_pattern != 'cubicsubdiv' and not spaghetti_infill_enabled",
                     "settable_per_mesh": true
                 },
                 "gradual_infill_step_height":
@@ -1356,7 +1415,7 @@
                 "max_skin_angle_for_expansion":
                 {
                     "label": "Maximum Skin Angle for Expansion",
-                    "description": "Top and or bottom surfaces of your object with an angle larger than this setting, won't have their top/bottom skin expanded. This avoids expanding the narrow skin areas that are created when the model surface has a near vertical slope. An angle of 0° is horizontal, while an angle of 90° is vertical.",
+                    "description": "Top and/or bottom surfaces of your object with an angle larger than this setting, won't have their top/bottom skin expanded. This avoids expanding the narrow skin areas that are created when the model surface has a near vertical slope. An angle of 0° is horizontal, while an angle of 90° is vertical.",
                     "unit": "°",
                     "type": "float",
                     "minimum_value": "0",
@@ -4405,6 +4464,40 @@
                     "settable_per_meshgroup": false,
                     "settable_globally": false
                 },
+                "mold_enabled":
+                {
+                    "label": "Mold",
+                    "description": "Print models as a mold, which can be cast in order to get a model which resembles the models on the build plate.",
+                    "type": "bool",
+                    "default_value": false,
+                    "settable_per_mesh": true
+                },
+                "mold_width":
+                {
+                    "label": "Minimal Mold Width",
+                    "description": "The minimal distance between the ouside of the mold and the outside of the model.",
+                    "unit": "mm",
+                    "type": "float",
+                    "minimum_value_warning": "wall_line_width_0 * 2",
+                    "maximum_value_warning": "100",
+                    "default_value": 5,
+                    "settable_per_mesh": true,
+                    "enabled": "mold_enabled"
+                },
+                "mold_angle":
+                {
+                    "label": "Mold Angle",
+                    "description": "The angle of overhang of the outer walls created for the mold. 0° will make the outer shell of the mold vertical, while 90° will make the outside of the model follow the contour of the model.",
+                    "unit": "°",
+                    "type": "float",
+                    "minimum_value": "-89",
+                    "minimum_value_warning": "0",
+                    "maximum_value_warning": "support_angle",
+                    "maximum_value": "90",
+                    "default_value": 40,
+                    "settable_per_mesh": true,
+                    "enabled": "mold_enabled"
+                },
                 "infill_mesh_order":
                 {
                     "label": "Infill Mesh Order",
@@ -4461,7 +4554,8 @@
                     "description": "Spiralize smooths out the Z move of the outer edge. This will create a steady Z increase over the whole print. This feature turns a solid model into a single walled print with a solid bottom. This feature used to be called Joris in older versions.",
                     "type": "bool",
                     "default_value": false,
-                    "settable_per_mesh": true
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": false
                 }
             }
         },

resources/definitions/imade3d_jellybox.def.json

@@ -0,0 +1,41 @@
+{
+    "id": "imade3d_jellybox",
+    "version": 2,
+    "name": "IMADE3D JellyBOX",
+    "inherits": "fdmprinter",
+    "metadata": {
+        "visible": true,
+        "author": "IMADE3D",
+        "manufacturer": "IMADE3D",
+        "category": "Other",
+        "platform": "imade3d_jellybox_platform.stl",
+        "platform_offset": [ 0, -0.3, 0],
+        "file_formats": "text/x-gcode",
+        "preferred_variant": "*0.4*",
+        "preferred_material": "*generic_pla*",
+        "preferred_quality": "*fast*",
+        "has_materials": true,
+        "has_variants": true,
+        "has_machine_materials": true,
+        "has_machine_quality": true
+      },
+
+    "overrides": {
+        "machine_head_with_fans_polygon": { "default_value": [[ 0, 0 ],[ 0, 0 ],[ 0, 0 ],[ 0, 0 ]]},
+        "machine_name": { "default_value": "IMADE3D JellyBOX" },
+        "machine_width": { "default_value": 170 },
+        "machine_height": { "default_value": 145 },
+        "machine_depth": { "default_value": 160 },
+        "machine_nozzle_size": { "default_value": 0.4 },
+        "material_diameter": { "default_value": 1.75 },
+        "machine_heated_bed": { "default_value": true },
+        "machine_center_is_zero": { "default_value": false },
+        "machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },
+        "machine_start_gcode": {
+            "default_value": ";---------------------------------------\n; ; ; Jellybox Start Script Begin ; ; ;\n;_______________________________________\n; M92 E140 ;optionally adjust steps per mm for your filament\n\n;              Print Settings Summary\n; (leave these alone: this is only a list of the slicing settings)\n; (overwriting these values will NOT change your printer's behavior)\n;             sliced for :  {machine_name}\n;        nozzle diameter :  {machine_nozzle_size}\n;      filament diameter :  {material_diameter}\n;           layer height :  {layer_height}\n;       1st layer height :  {layer_height_0}\n;             line width :  {line_width}\n;  outer wall wipe dist. :  {wall_0_wipe_dist}\n;      infill line width :  {infill_line_width}\n;         wall thickness :  {wall_thickness}\n;          top thickness :  {top_thickness}\n;       bottom thickness :  {bottom_thickness}\n;         infill density :  {infill_sparse_density}\n;         infill pattern :  {infill_pattern}\n;      print temperature :  {material_print_temperature}\n;  1st layer print temp. :  {material_print_temperature_layer_0}\n; heated bed temperature :  {material_bed_temperature}\n;    1st layer bed temp. :  {material_bed_temperature_layer_0}\n;      regular fan speed :  {cool_fan_speed_min}\n;          max fan speed :  {cool_fan_speed_max}\n;     retraction amount  :  {retraction_amount}\n;   retr. retract speed  :  {retraction_retract_speed}\n;     retr. prime speed  :  {retraction_prime_speed}\n;   build plate adhesion :  {adhesion_type}\n;                support ?  {support_enable}\n;             spiralized ?  {magic_spiralize}\n\nM117 Preparing        ;write Preparing\nM140 S{material_bed_temperature_layer_0}              ;set bed temperature and move on\nM104 S{material_print_temperature_layer_0}             ;set extruder temperature and move on\nM206 X10.0 Y0.0       ;set x homing offset for default bed leveling\nG21                   ;metric values\nG90                   ;absolute positioning\nM107                  ;start with the fan off\nM82                   ;set extruder to absolute mode\nG28                   ;home all axes\nM203 Z4               ;slow Z speed down for greater accuracy when probing\nG29                   ;auto bed leveling procedure\nM203 Z7               ;pick up z speed again for printing\nM190 S{material_bed_temperature_layer_0}              ;wait for the bed to reach desired temperature\nM109 S{material_print_temperature_layer_0}             ;wait for the extruder to reach desired temperature\nG92 E0                ;reset the extruder position\nG1 F1500 E15          ;extrude 15mm of feed stock\nG92 E0                ;reset the extruder position again\nM117 Print starting   ;write Print starting\n;---------------------------------------------\n; ; ; Jellybox Printer Start Script End ; ; ;\n;_____________________________________________\n"
+        },
+        "machine_end_gcode": {
+            "default_value": "\n;---------------------------------\n;;; Jellybox End Script Begin ;;;\n;_________________________________\nM117 Finishing Up ;write Finishing Up\n\nM104 S0 ;extruder heater off\nM140 S0 ;bed heater off (if you have it)\nG91 ;relative positioning\nG1 E-1 F300  ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+0.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG90 ;absolute positioning\nG28 X ;home x, so the head is out of the way\nG1 Y100 ;move Y forward, so the print is more accessible\nM84 ;steppers off\n\nM117 Print finished ;write Print finished\n;---------------------------------------\n;;; Jellybox End Script End ;;;\n;_______________________________________"
+        }
+    }
+}

resources/definitions/jellybox.def.json

@@ -1,35 +0,0 @@
-{
-    "id": "jellybox",
-    "version": 2,
-    "name": "JellyBOX",
-    "inherits": "fdmprinter",
-    "metadata": {
-        "visible": true,
-        "author": "IMADE3D",
-        "manufacturer": "IMADE3D",
-        "category": "Other",
-        "platform": "jellybox_platform.stl",
-        "platform_offset": [ 0, -0.3, 0],
-        "file_formats": "text/x-gcode",
-        "has_materials": true,
-        "has_machine_materials": true
-    },
-
-    "overrides": {
-        "machine_name": { "default_value": "IMADE3D JellyBOX" },
-        "machine_width": { "default_value": 170 },
-        "machine_height": { "default_value": 145 },
-        "machine_depth": { "default_value": 160 },
-        "machine_nozzle_size": { "default_value": 0.4 },
-        "material_diameter": { "default_value": 1.75 },
-        "machine_heated_bed": { "default_value": true },
-        "machine_center_is_zero": { "default_value": false },
-        "machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },
-        "machine_start_gcode": {
-            "default_value": ";---------------------------------------\n; ; ; Jellybox Start Script Begin ; ; ;\n;_______________________________________\n; M92 E140 ;optionally adjust steps per mm for your filament\n\n;                 Print Settings Summary\n; (overwriting these values will NOT change your printer's behavior)\n;              sliced for:  {machine_name}\n;         nozzle diameter:  {machine_nozzle_size}\n;       filament diameter:  {material_diameter}\n;            layer height:  {layer_height}\n;        1st layer height:  {layer_height_0}\n;              line width:  {line_width}\n;          wall thickness:  {wall_thickness}\n;          infill density:  {infill_sparse_density}\n;          infill pattern:  {infill_pattern}\n;       print temperature:  {material_print_temperature}\n;  heated bed temperature:  {material_bed_temperature}\n;       regular fan speed:  {cool_fan_speed_min}\n;           max fan speed:  {cool_fan_speed_max}\n;                 support?  {support_enable}\n;              spiralized?  {magic_spiralize}\n\nM117 Preparing        ;write Preparing\nM140 S{material_bed_temperature}              ;set bed temperature and move on\nM104 S{material_print_temperature}             ;set extruder temperature and move on\nM206 X10.0 Y0.0       ;set x homing offset for default bed leveling\nG21                   ;metric values\nG90                   ;absolute positioning\nM107                  ;start with the fan off\nM82                   ;set extruder to absolute mode\nG28                   ;home all axes\nM203 Z5               ;slow Z speed down for greater accuracy when probing\nG29                   ;auto bed leveling procedure\nM203 Z7               ;pick up z speed again for printing\nM190 S{material_bed_temperature}              ;wait for the bed to reach desired temperature\nM109 S{material_print_temperature}             ;wait for the extruder to reach desired temperature\nG92 E0                ;reset the extruder position\nG1 F200 E5            ;extrude 5mm of feed stock\nG92 E0                ;reset the extruder position again\nM117 Print starting   ;write Print starting\n;---------------------------------------------\n; ; ; Jellybox Printer Start Script End ; ; ;\n;_____________________________________________"
-        },
-        "machine_end_gcode": {
-            "default_value": "\n;---------------------------------\n;;; Jellybox End Script Begin ;;;\n;_________________________________\nM117 Finishing Up ;write Finishing Up\n\nM104 S0 ;extruder heater off\nM140 S0 ;bed heater off (if you have it)\nG91 ;relative positioning\nG1 E-1 F300  ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+0.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more\nG90 ;absolute positioning\nG28 X ;home x, so the head is out of the way\nG1 Y100 ;move Y forward, so the print is more accessible\nM84 ;steppers off\n\nM117 Print finished ;write Print finished\n;---------------------------------------\n;;; Jellybox End Script End ;;;\n;_______________________________________"
-        }
-    }
-}

resources/definitions/makeit_pro_l.def.json

@@ -0,0 +1,129 @@
+{
+    "id": "makeit_pro_l",
+    "version": 2,
+    "name": "MAKEiT Pro-L",
+    "inherits": "fdmprinter",
+    "metadata": {
+        "visible": true,
+        "author": "NA",
+        "manufacturer": "NA",
+        "category": "Other",
+        "file_formats": "text/x-gcode",
+        "has_materials": false,
+        "supported_actions": [ "MachineSettingsAction", "UpgradeFirmware" ],
+        "machine_extruder_trains":
+        {
+            "0": "makeit_l_dual_1st",
+            "1": "makeit_l_dual_2nd"
+        }
+    },
+
+    "overrides": {
+        "machine_name": { "default_value": "MAKEiT Pro-L" },
+        "machine_width": {
+            "default_value": 305
+        },
+        "machine_height": {
+            "default_value": 330
+        },
+        "machine_depth": {
+            "default_value": 254
+        },
+        "machine_center_is_zero": {
+            "default_value": false
+        },
+        "machine_nozzle_size": {
+            "default_value": 0.4
+        },
+        "machine_nozzle_heat_up_speed": {
+            "default_value": 2
+        },
+        "machine_nozzle_cool_down_speed": {
+            "default_value": 2
+        },
+        "machine_head_with_fans_polygon":
+        {
+            "default_value": [
+                [ -305, 28 ],
+                [ -305, -28 ],
+                [ 305, 28 ],
+                [ 305, -28 ]
+            ]
+        },
+        "gantry_height": {
+            "default_value": 330
+        },
+        "machine_use_extruder_offset_to_offset_coords": {
+            "default_value": true
+        },
+        "machine_gcode_flavor": {
+            "default_value": "RepRap (Marlin/Sprinter)"
+        },
+        "machine_start_gcode": {
+            "default_value": "G21 ;metric values\nG90 ;absolute positioning\nM82 ;set extruder to absolute mode\nG92 E0 ;zero the extruded length\nG28 ;home\nG1 F200 E30 ;extrude 30 mm of feed stock\nG92 E0 ;zero the extruded length\nG1 E-5 ;retract 5 mm\nG28 SC ;Do homeing, clean nozzles and let printer to know that printing started\nG92 X-6 ;Sets Curas checker board to match printers heated bed coordinates\nG1 F{speed_travel}\nM117 Printing..."
+        },
+        "machine_end_gcode": {
+            "default_value": "M104 T0 S0 ;1st extruder heater off\nM104 T1 S0 ;2nd extruder heater off\nM140 S0 ;heated bed heater off (if you have it)\nG91 ;relative positioning\nG1 E-5 F9000  ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+5 X+20 Y+20 F9000 ;move Z up a bit\nM117 MAKEiT Pro@Done\nG28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way\nM84 ;steppers off\nG90 ;absolute positioning\nM81"
+        },
+        "machine_extruder_count": {
+            "default_value": 2
+        },
+        "print_sequence": {
+            "enabled": true
+        },
+        "prime_tower_position_x": {
+            "default_value": 185
+        },
+        "prime_tower_position_y": {
+            "default_value": 160
+        },
+        "material_diameter": {
+          "default_value": 1.75
+        },
+        "layer_height": {
+          "default_value": 0.2
+        },
+        "retraction_speed": {
+          "default_value": 180
+        },
+        "infill_sparse_density": {
+          "default_value": 20
+        },
+        "retraction_amount": {
+          "default_value": 6
+        },
+        "retraction_min_travel": {
+          "default_value": 1.5
+        },
+        "speed_travel": {
+          "default_value": 150
+        },
+        "speed_print": {
+          "default_value": 60
+        },
+        "wall_thickness": {
+          "default_value": 1.2
+        },
+        "bottom_thickness": {
+          "default_value": 0.2
+        },
+        "speed_layer_0": {
+          "default_value": 20
+        },
+        "speed_print_layer_0": {
+          "default_value": 20
+        },
+        "cool_min_layer_time_fan_speed_max": {
+          "default_value": 5
+        },
+        "adhesion_type": {
+          "default_value": "skirt"
+        },
+        "machine_heated_bed": {
+            "default_value": true
+        },
+        "machine_heat_zone_length": {
+            "default_value": 20
+        }
+    }
+}

resources/definitions/makeit_pro_m.def.json

@@ -0,0 +1,126 @@
+{
+    "id": "makeit_pro_m",
+    "version": 2,
+    "name": "MAKEiT Pro-M",
+    "inherits": "fdmprinter",
+    "metadata": {
+        "visible": true,
+        "author": "NA",
+        "manufacturer": "NA",
+        "category": "Other",
+        "file_formats": "text/x-gcode",
+        "has_materials": false,
+        "supported_actions": [ "MachineSettingsAction", "UpgradeFirmware" ],
+        "machine_extruder_trains":
+        {
+            "0": "makeit_dual_1st",
+            "1": "makeit_dual_2nd"
+        }
+    },
+
+    "overrides": {
+        "machine_name": { "default_value": "MAKEiT Pro-M" },
+        "machine_width": {
+            "default_value": 200
+        },
+        "machine_height": {
+            "default_value": 200
+        },
+        "machine_depth": {
+            "default_value": 240
+        },
+        "machine_center_is_zero": {
+            "default_value": false
+        },
+        "machine_nozzle_size": {
+            "default_value": 0.4
+        },
+        "machine_nozzle_heat_up_speed": {
+            "default_value": 2
+        },
+        "machine_nozzle_cool_down_speed": {
+            "default_value": 2
+        },
+        "machine_head_with_fans_polygon":
+        {
+            "default_value": [
+                [ -200, 240 ],
+                [ -200, -32 ],
+                [ 200, 240 ],
+                [ 200, -32 ]
+            ]
+        },
+        "gantry_height": {
+            "default_value": 200
+        },
+        "machine_use_extruder_offset_to_offset_coords": {
+            "default_value": true
+        },
+        "machine_gcode_flavor": {
+            "default_value": "RepRap (Marlin/Sprinter)"
+        },
+        "machine_start_gcode": {
+            "default_value": "G21 ;metric values\nG90 ;absolute positioning\nM82 ;set extruder to absolute mode\nG92 E0 ;zero the extruded length\nG28 ;home\nG1 F200 E30 ;extrude 30 mm of feed stock\nG92 E0 ;zero the extruded length\nG1 E-5 ;retract 5 mm\nG28 SC ;Do homeing, clean nozzles and let printer to know that printing started\nG92 X-6 ;Sets Curas checker board to match printers heated bed coordinates\nG1 F{speed_travel}\nM117 Printing..."
+        },
+        "machine_end_gcode": {
+            "default_value": "M104 T0 S0 ;1st extruder heater off\nM104 T1 S0 ;2nd extruder heater off\nM140 S0 ;heated bed heater off (if you have it)\nG91 ;relative positioning\nG1 E-5 F9000  ;retract the filament a bit before lifting the nozzle, to release some of the pressure\nG1 Z+5 X+20 Y+20 F9000 ;move Z up a bit\nM117 MAKEiT Pro@Done\nG28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way\nM84 ;steppers off\nG90 ;absolute positioning\nM81"
+        },
+        "machine_extruder_count": {
+            "default_value": 2
+        },
+        "print_sequence": {
+            "enabled": false
+        },
+        "prime_tower_position_x": {
+            "default_value": 185
+        },
+        "prime_tower_position_y": {
+            "default_value": 160
+        },
+        "material_diameter": {
+          "default_value": 1.75
+        },
+        "layer_height": {
+          "default_value": 0.2
+        },
+        "retraction_speed": {
+          "default_value": 180
+        },
+        "infill_sparse_density": {
+          "default_value": 20
+        },
+        "retraction_amount": {
+          "default_value": 6
+        },
+        "retraction_min_travel": {
+          "default_value": 1.5
+        },
+        "speed_travel": {
+          "default_value": 150
+        },
+        "speed_print": {
+          "default_value": 60
+        },
+        "wall_thickness": {
+          "default_value": 1.2
+        },
+        "bottom_thickness": {
+          "default_value": 0.2
+        },
+        "speed_layer_0": {
+          "default_value": 20
+        },
+        "speed_print_layer_0": {
+          "default_value": 20
+        },
+        "cool_min_layer_time_fan_speed_max": {
+          "default_value": 5
+        },
+        "adhesion_type": {
+          "default_value": "skirt"
+        },
+        "machine_heated_bed": {
+            "default_value": true
+        }
+    }
+}

resources/definitions/renkforce_rf100.def.json

@@ -76,7 +76,7 @@
             "value": "100"
         },
         "material_bed_temperature": {
-            "visible": "False"
+            "enabled": false
         },
         "material_diameter": {
             "value": "1.75"

resources/extruders/cartesio_extruder_0.def.json

@@ -16,10 +16,10 @@
         "machine_nozzle_offset_x": { "default_value": 0.0 },
         "machine_nozzle_offset_y": { "default_value": 0.0 },
         "machine_extruder_start_code": {
-          "default_value": "\n;start extruder_0\nM117 Heating nozzles....\nM104 S190 T0\nG1 X70 Y20 F9000\nM109 S190 T0\n\nM117 purging nozzle\nG92 E0\nG1 E6 F90\nG92 E0\nG1 E-2 F300\nG92 E0\nM117 wiping nozzle\nG1 X1 Y28 F3000\nG1 X70 F6000\n\nM117 printing\n"
+          "default_value": "\n;start extruder_0\n\nM117 printing\n"
         },
         "machine_extruder_end_code": {
-           "default_value": "\nM104 T0 S155\n;end extruder_0\nM117 temp is {material_print_temp}"
+           "default_value": "\nM104 T0 S155\nG91\nG1 Z0.5 F900\nG90\nG1 X1 Y260 F9000\n;end extruder_0\nM117 temp is {material_print_temp}"
         }
     }
 }

resources/extruders/cartesio_extruder_1.def.json

@@ -16,10 +16,10 @@
         "machine_nozzle_offset_x": { "default_value": 24.0 },
         "machine_nozzle_offset_y": { "default_value": 0.0 },
         "machine_extruder_start_code": {
-          "default_value": "\n;start extruder_1\nM117 Heating nozzles....\nM104 S190 T1\nG1 X70 Y20 F9000\nM109 S190 T1\n\nM117 purging nozzle\nG92 E0\nG1 E6 F90\nG92 E0\nG1 E-2 F300\nG92 E0\n\nM117 wiping nozzle\nG1 X1 Y28 F3000\nG1 X70 F6000\n\nM117 printing\n"
+          "default_value": "\n;start extruder_1\n\nM117 printing\n"
         },
         "machine_extruder_end_code": {
-           "default_value": "\nM104 T1 S155\n;end extruder_1\n"
+           "default_value": "\nM104 T1 S155\nG91\nG1 Z0.5 F900\nG90\nG1 X1 Y260 F9000\n;end extruder_1\n"
         }
     }
 }

resources/extruders/cartesio_extruder_2.def.json

@@ -16,10 +16,10 @@
         "machine_nozzle_offset_x": { "default_value": 0.0 },
         "machine_nozzle_offset_y": { "default_value": 60.0 },
         "machine_extruder_start_code": {
-          "default_value": "\n;start extruder_2\nM117 Heating nozzles....\nM104 S190 T2\nG1 X70 Y20 F9000\nM109 S190 T2\n\nM117 purging nozzle\nG92 E0\nG1 E6 F90\nG92 E0\nG1 E-2 F300\nG92 E0\n\nM117 wiping nozzle\nG1 X1 Y28 F3000\nG1 X70 F6000\n\nM117 printing\n"
+          "default_value": "\n;start extruder_2\n\nM117 printing\n"
         },
         "machine_extruder_end_code": {
-           "default_value": "\nM104 T2 S155\n;end extruder_2\n"
+           "default_value": "\nM104 T2 S155\nG91\nG1 Z0.5 F900\nG90\nG1 X1 Y260 F9000\n;end extruder_2\n"
         }
     }
 }

resources/extruders/cartesio_extruder_3.def.json

@@ -16,10 +16,10 @@
         "machine_nozzle_offset_x": { "default_value": 24.0 },
         "machine_nozzle_offset_y": { "default_value": 60.0 },
         "machine_extruder_start_code": {
-          "default_value": "\n;start extruder_3\nM117 Heating nozzles....\nM104 S190 T3\nG1 X70 Y20 F9000\nM109 S190 T3\n\nM117 purging nozzle\nG92 E0\nG1 E6 F90\nG92 E0\nG1 E-2 F300\nG92 E0\n\nM117 wiping nozzle\nG1 X1 Y28 F3000\nG1 X70 F6000\n\nM117 printing\n"
+          "default_value": "\n;start extruder_3\n\nM117 printing\n"
         },
         "machine_extruder_end_code": {
-           "default_value": "\nM104 T3 S155\n;end extruder_3\n"
+           "default_value": "\nM104 T3 S155\nG91\nG1 Z0.5 F900\nG90\nG1 X1 Y260 F9000\n;end extruder_3\n"
         }
     }
 }

resources/extruders/makeit_dual_1st.def.json

@@ -0,0 +1,26 @@
+{
+    "id": "makeit_dual_1st",
+    "version": 2,
+    "name": "1st Extruder",
+    "inherits": "fdmextruder",
+    "metadata": {
+        "machine": "makeit_pro_m",
+        "position": "0"
+    },
+
+    "overrides": {
+        "extruder_nr": {
+            "default_value": 0,
+            "maximum_value": "1"
+        },
+        "machine_nozzle_offset_x": { "default_value": 0.0 },
+        "machine_nozzle_offset_y": { "default_value": 0.0 },
+
+        "machine_extruder_start_pos_abs": { "default_value": true },
+        "machine_extruder_start_pos_x": { "value": "prime_tower_position_x" },
+        "machine_extruder_start_pos_y": { "value": "prime_tower_position_y" },
+        "machine_extruder_end_pos_abs": { "default_value": true },
+        "machine_extruder_end_pos_x": { "value": "prime_tower_position_x" },
+        "machine_extruder_end_pos_y": { "value": "prime_tower_position_y" }
+    }
+}

resources/extruders/makeit_dual_2nd.def.json

@@ -0,0 +1,26 @@
+{
+    "id": "makeit_dual_2nd",
+    "version": 2,
+    "name": "2nd Extruder",
+    "inherits": "fdmextruder",
+    "metadata": {
+        "machine": "makeit_pro_m",
+        "position": "1"
+    },
+
+    "overrides": {
+        "extruder_nr": {
+            "default_value": 1,
+            "maximum_value": "1"
+        },
+        "machine_nozzle_offset_x": { "default_value": 0.0 },
+        "machine_nozzle_offset_y": { "default_value": 0.0 },
+
+        "machine_extruder_start_pos_abs": { "default_value": true },
+        "machine_extruder_start_pos_x": { "value": "prime_tower_position_x" },
+        "machine_extruder_start_pos_y": { "value": "prime_tower_position_y" },
+        "machine_extruder_end_pos_abs": { "default_value": true },
+        "machine_extruder_end_pos_x": { "value": "prime_tower_position_x" },
+        "machine_extruder_end_pos_y": { "value": "prime_tower_position_y" }
+    }
+}

resources/extruders/makeit_l_dual_1st.def.json

@@ -0,0 +1,26 @@
+{
+    "id": "makeit_l_dual_1st",
+    "version": 2,
+    "name": "1st Extruder",
+    "inherits": "fdmextruder",
+    "metadata": {
+        "machine": "makeit_pro_l",
+        "position": "0"
+    },
+
+    "overrides": {
+        "extruder_nr": {
+            "default_value": 0,
+            "maximum_value": "1"
+        },
+        "machine_nozzle_offset_x": { "default_value": 0.0 },
+        "machine_nozzle_offset_y": { "default_value": 0.0 },
+
+        "machine_extruder_start_pos_abs": { "default_value": true },
+        "machine_extruder_start_pos_x": { "value": "prime_tower_position_x" },
+        "machine_extruder_start_pos_y": { "value": "prime_tower_position_y" },
+        "machine_extruder_end_pos_abs": { "default_value": true },
+        "machine_extruder_end_pos_x": { "value": "prime_tower_position_x" },
+        "machine_extruder_end_pos_y": { "value": "prime_tower_position_y" }
+    }
+}

resources/extruders/makeit_l_dual_2nd.def.json

@@ -0,0 +1,26 @@
+{
+    "id": "makeit_l_dual_2nd",
+    "version": 2,
+    "name": "2nd Extruder",
+    "inherits": "fdmextruder",
+    "metadata": {
+        "machine": "makeit_pro_l",
+        "position": "1"
+    },
+
+    "overrides": {
+        "extruder_nr": {
+            "default_value": 1,
+            "maximum_value": "1"
+        },
+        "machine_nozzle_offset_x": { "default_value": 0.0 },
+        "machine_nozzle_offset_y": { "default_value": 0.0 },
+
+        "machine_extruder_start_pos_abs": { "default_value": true },
+        "machine_extruder_start_pos_x": { "value": "prime_tower_position_x" },
+        "machine_extruder_start_pos_y": { "value": "prime_tower_position_y" },
+        "machine_extruder_end_pos_abs": { "default_value": true },
+        "machine_extruder_end_pos_x": { "value": "prime_tower_position_x" },
+        "machine_extruder_end_pos_y": { "value": "prime_tower_position_y" }
+    }
+}

resources/extruders/ultimaker3_extended_extruder_left.def.json

@@ -23,7 +23,7 @@
         "machine_extruder_end_pos_x": { "default_value": 213 },
         "machine_extruder_end_pos_y": { "default_value": 207 },
         "machine_nozzle_head_distance": { "default_value": 2.7 },
-        "extruder_prime_pos_x": { "default_value": 170 },
+        "extruder_prime_pos_x": { "default_value": 9 },
         "extruder_prime_pos_y": { "default_value": 6 },
         "extruder_prime_pos_z": { "default_value": 2 }
     }

resources/extruders/ultimaker3_extended_extruder_right.def.json

@@ -23,7 +23,7 @@
         "machine_extruder_end_pos_x": { "default_value": 213 },
         "machine_extruder_end_pos_y": { "default_value": 189 },
         "machine_nozzle_head_distance": { "default_value": 4.2 },
-        "extruder_prime_pos_x": { "default_value": 182 },
+        "extruder_prime_pos_x": { "default_value": 222 },
         "extruder_prime_pos_y": { "default_value": 6 },
         "extruder_prime_pos_z": { "default_value": 2 }
     }

resources/extruders/ultimaker3_extruder_left.def.json

@@ -23,7 +23,7 @@
         "machine_extruder_end_pos_x": { "default_value": 213 },
         "machine_extruder_end_pos_y": { "default_value": 207 },
         "machine_nozzle_head_distance": { "default_value": 2.7 },
-        "extruder_prime_pos_x": { "default_value": 170 },
+        "extruder_prime_pos_x": { "default_value": 9 },
         "extruder_prime_pos_y": { "default_value": 6 },
         "extruder_prime_pos_z": { "default_value": 2 }
     }

resources/extruders/ultimaker3_extruder_right.def.json

@@ -23,7 +23,7 @@
         "machine_extruder_end_pos_x": { "default_value": 213 },
         "machine_extruder_end_pos_y": { "default_value": 189 },
         "machine_nozzle_head_distance": { "default_value": 4.2 },
-        "extruder_prime_pos_x": { "default_value": 182 },
+        "extruder_prime_pos_x": { "default_value": 222 },
         "extruder_prime_pos_y": { "default_value": 6 },
         "extruder_prime_pos_z": { "default_value": 2 }
     }

resources/i18n/de/fdmextruder.def.json.po

@@ -1,13 +1,18 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 #, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: Uranium json setting files\n"
+"Project-Id-Version: Cura 2.5\n"
-"Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
+"Report-Msgid-Bugs-To: http://github.com/Ultimaker/Cura\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
-"PO-Revision-Date: 2017-01-12 15:51+0100\n"
+"PO-Revision-Date: 2017-04-04 11:27+0200\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Last-Translator: Bothof <info@bothof.nl>\n"
-"Language-Team: LANGUAGE\n"
+"Language-Team: Bothof <info@bothof.nl>\n"
-"Language: \n"
+"Language: de\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

resources/i18n/es/fdmextruder.def.json.po

@@ -1,13 +1,18 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 #, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: Uranium json setting files\n"
+"Project-Id-Version: Cura 2.5\n"
-"Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
+"Report-Msgid-Bugs-To: http://github.com/Ultimaker/Cura\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
-"PO-Revision-Date: 2017-01-12 15:51+0100\n"
+"PO-Revision-Date: 2017-04-04 11:27+0200\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Last-Translator: Bothof <info@bothof.nl>\n"
-"Language-Team: LANGUAGE\n"
+"Language-Team: Bothof <info@bothof.nl>\n"
-"Language: \n"
+"Language: es\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

resources/i18n/fdmextruder.def.json.pot

@@ -3,7 +3,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Uranium json setting files\n"
 "Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE\n"

resources/i18n/fdmprinter.def.json.pot

@@ -3,7 +3,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Uranium json setting files\n"
 "Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE\n"
@@ -268,6 +268,18 @@ msgid ""
 "extruder is no longer used."
 msgstr ""
 
+#: fdmprinter.def.json
+msgctxt "machine_nozzle_temp_enabled label"
+msgid "Enable Nozzle Temperature Control"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "machine_nozzle_temp_enabled description"
+msgid ""
+"Whether to control temperature from Cura. Turn this off to control nozzle "
+"temperature from outside of Cura."
+msgstr ""
+
 #: fdmprinter.def.json
 msgctxt "machine_nozzle_heat_up_speed label"
 msgid "Heat up speed"
@@ -856,6 +868,47 @@ msgctxt "top_bottom_pattern option zigzag"
 msgid "Zig Zag"
 msgstr ""
 
+#: fdmprinter.def.json
+msgctxt "top_bottom_pattern_0 label"
+msgid "Bottom Pattern Initial Layer"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "top_bottom_pattern_0 description"
+msgid "The pattern on the bottom of the print on the first layer."
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "top_bottom_pattern_0 option lines"
+msgid "Lines"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "top_bottom_pattern_0 option concentric"
+msgid "Concentric"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "top_bottom_pattern_0 option zigzag"
+msgid "Zig Zag"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "skin_angles label"
+msgid "Top/Bottom Line Directions"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "skin_angles description"
+msgid ""
+"A list of integer line directions to use when the top/bottom layers use the "
+"lines or zig zag pattern. Elements from the list are used sequentially as "
+"the layers progress and when the end of the list is reached, it starts at "
+"the beginning again. The list items are separated by commas and the whole "
+"list is contained in square brackets. Default is an empty list which means "
+"use the traditional default angles (45 and 135 degrees)."
+msgstr ""
+
 #: fdmprinter.def.json
 msgctxt "wall_0_inset label"
 msgid "Outer Wall Inset"
@@ -1124,6 +1177,22 @@ msgctxt "infill_pattern option zigzag"
 msgid "Zig Zag"
 msgstr ""
 
+#: fdmprinter.def.json
+msgctxt "infill_angles label"
+msgid "Infill Line Directions"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "infill_angles description"
+msgid ""
+"A list of integer line directions to use. Elements from the list are used "
+"sequentially as the layers progress and when the end of the list is reached, "
+"it starts at the beginning again. The list items are separated by commas and "
+"the whole list is contained in square brackets. Default is an empty list "
+"which means use the traditional default angles (45 and 135 degrees for the "
+"lines and zig zag patterns and 45 degrees for all other patterns)."
+msgstr ""
+
 #: fdmprinter.def.json
 msgctxt "sub_div_rad_mult label"
 msgid "Cubic Subdivision Radius"
@@ -1262,6 +1331,97 @@ msgid ""
 "through the surface."
 msgstr ""
 
+#: fdmprinter.def.json
+msgctxt "min_infill_area label"
+msgid "Minimum Infill Area"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "min_infill_area description"
+msgid "Don't generate areas of infill smaller than this (use skin instead)."
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "expand_skins_into_infill label"
+msgid "Expand Skins Into Infill"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "expand_skins_into_infill description"
+msgid ""
+"Expand skin areas of top and/or bottom skin of flat surfaces. By default, "
+"skins stop under the wall lines that surround infill but this can lead to "
+"holes appearing when the infill density is low. This setting extends the "
+"skins beyond the wall lines so that the infill on the next layer rests on "
+"skin."
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "expand_upper_skins label"
+msgid "Expand Upper Skins"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "expand_upper_skins description"
+msgid ""
+"Expand upper skin areas (areas with air above) so that they support infill "
+"above."
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "expand_lower_skins label"
+msgid "Expand Lower Skins"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "expand_lower_skins description"
+msgid ""
+"Expand lower skin areas (areas with air below) so that they are anchored by "
+"the infill layers above and below."
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "expand_skins_expand_distance label"
+msgid "Skin Expand Distance"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "expand_skins_expand_distance description"
+msgid ""
+"The distance the skins are expanded into the infill. The default distance is "
+"enough to bridge the gap between the infill lines and will stop holes "
+"appearing in the skin where it meets the wall when the infill density is "
+"low. A smaller distance will often be sufficient."
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "max_skin_angle_for_expansion label"
+msgid "Maximum Skin Angle for Expansion"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "max_skin_angle_for_expansion description"
+msgid ""
+"Top and/or bottom surfaces of your object with an angle larger than this "
+"setting, won't have their top/bottom skin expanded. This avoids expanding "
+"the narrow skin areas that are created when the model surface has a near "
+"vertical slope. An angle of 0° is horizontal, while an angle of 90° is "
+"vertical."
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "min_skin_width_for_expansion label"
+msgid "Minimum Skin Width for Expansion"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "min_skin_width_for_expansion description"
+msgid ""
+"Skin areas narrower than this are not expanded. This avoids expanding the "
+"narrow skin areas that are created when the model surface has a slope close "
+"to the vertical."
+msgstr ""
+
 #: fdmprinter.def.json
 msgctxt "material label"
 msgid "Material"
@@ -1304,8 +1464,7 @@ msgstr ""
 
 #: fdmprinter.def.json
 msgctxt "material_print_temperature description"
-msgid ""
+msgid "The temperature used for printing."
-"The temperature used for printing. Set at 0 to pre-heat the printer manually."
 msgstr ""
 
 #: fdmprinter.def.json
@@ -1376,8 +1535,8 @@ msgstr ""
 #: fdmprinter.def.json
 msgctxt "material_bed_temperature description"
 msgid ""
-"The temperature used for the heated build plate. Set at 0 to pre-heat the "
+"The temperature used for the heated build plate. If this is 0, the bed will "
-"printer manually."
+"not heat up for this print."
 msgstr ""
 
 #: fdmprinter.def.json
@@ -2216,6 +2375,16 @@ msgctxt "retraction_combing option noskin"
 msgid "No Skin"
 msgstr ""
 
+#: fdmprinter.def.json
+msgctxt "travel_retract_before_outer_wall label"
+msgid "Retract Before Outer Wall"
+msgstr ""
+
+#: fdmprinter.def.json
+msgctxt "travel_retract_before_outer_wall description"
+msgid "Always retract when moving to start an outer wall."
+msgstr ""
+
 #: fdmprinter.def.json
 msgctxt "travel_avoid_other_parts label"
 msgid "Avoid Printed Parts When Traveling"
@@ -2671,7 +2840,7 @@ msgctxt "support_z_distance description"
 msgid ""
 "Distance from the top/bottom of the support structure to the print. This gap "
 "provides clearance to remove the supports after the model is printed. This "
-"value is rounded down to a multiple of the layer height."
+"value is rounded up to a multiple of the layer height."
 msgstr ""
 
 #: fdmprinter.def.json

resources/i18n/fi/fdmextruder.def.json.po

@@ -1,13 +1,18 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 #, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: Uranium json setting files\n"
+"Project-Id-Version: Cura 2.5\n"
-"Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
+"Report-Msgid-Bugs-To: http://github.com/Ultimaker/Cura\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
-"PO-Revision-Date: 2017-01-12 15:51+0100\n"
+"PO-Revision-Date: 2017-04-04 11:27+0200\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Last-Translator: Bothof <info@bothof.nl>\n"
-"Language-Team: LANGUAGE\n"
+"Language-Team: Bothof <info@bothof.nl>\n"
-"Language: \n"
+"Language: fi\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

resources/i18n/fr/fdmextruder.def.json.po

@@ -1,13 +1,18 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 #, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: Uranium json setting files\n"
+"Project-Id-Version: Cura 2.5\n"
-"Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
+"Report-Msgid-Bugs-To: http://github.com/Ultimaker/Cura\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
-"PO-Revision-Date: 2017-01-12 15:51+0100\n"
+"PO-Revision-Date: 2017-04-04 11:27+0200\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Last-Translator: Bothof <info@bothof.nl>\n"
-"Language-Team: LANGUAGE\n"
+"Language-Team: Bothof <info@bothof.nl>\n"
-"Language: \n"
+"Language: fr\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

resources/i18n/it/fdmextruder.def.json.po

@@ -1,13 +1,18 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 #, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: Uranium json setting files\n"
+"Project-Id-Version: Cura 2.5\n"
-"Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
+"Report-Msgid-Bugs-To: http://github.com/Ultimaker/Cura\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
-"PO-Revision-Date: 2017-01-12 15:51+0100\n"
+"PO-Revision-Date: 2017-04-04 11:27+0200\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Last-Translator: Bothof <info@bothof.nl>\n"
-"Language-Team: LANGUAGE\n"
+"Language-Team: Bothof <info@bothof.nl>\n"
-"Language: \n"
+"Language: it\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

resources/i18n/nl/fdmextruder.def.json.po

@@ -1,13 +1,18 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 #, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: Uranium json setting files\n"
+"Project-Id-Version: Cura 2.5\n"
-"Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
+"Report-Msgid-Bugs-To: http://github.com/Ultimaker/Cura\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
-"PO-Revision-Date: 2017-01-12 15:51+0100\n"
+"PO-Revision-Date: 2017-04-04 11:27+0200\n"
-"Last-Translator: Ruben Dulek <r.dulek@ultimaker.com>\n"
+"Last-Translator: Bothof <info@bothof.nl>\n"
-"Language-Team: Ultimaker\n"
+"Language-Team: Bothof <info@bothof.nl>\n"
-"Language: \n"
+"Language: nl\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

resources/i18n/ptbr/fdmextruder.def.json.po

@@ -3,7 +3,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Uranium json setting files\n"
 "Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
 "PO-Revision-Date: 2016-01-25 05:05-0300\n"
 "Last-Translator: Cláudio Sampaio <patola@makerlinux.com.br>\n"
 "Language-Team: LANGUAGE\n"
@@ -70,12 +70,8 @@ msgstr "Posição de Início do Extrusor Absoluta"
 
 #: fdmextruder.def.json
 msgctxt "machine_extruder_start_pos_abs description"
-msgid ""
+msgid "Make the extruder starting position absolute rather than relative to the last-known location of the head."
-"Make the extruder starting position absolute rather than relative to the "
+msgstr "Faz a posição de início do extrusor ser absoluta ao invés de relativa à última posição conhecida da cabeça de impressão."
-"last-known location of the head."
-msgstr ""
-"Faz a posição de início do extrusor ser absoluta ao invés de relativa à "
-"última posição conhecida da cabeça de impressão."
 
 #: fdmextruder.def.json
 msgctxt "machine_extruder_start_pos_x label"
@@ -114,12 +110,8 @@ msgstr "Posição Final do Extrusor Absoluta"
 
 #: fdmextruder.def.json
 msgctxt "machine_extruder_end_pos_abs description"
-msgid ""
+msgid "Make the extruder ending position absolute rather than relative to the last-known location of the head."
-"Make the extruder ending position absolute rather than relative to the last-"
+msgstr "Faz a posição final do extrusor ser absoluta ao invés de relativa à última posição conhecida da cabeça de impressão."
-"known location of the head."
-msgstr ""
-"Faz a posição final do extrusor ser absoluta ao invés de relativa à última "
-"posição conhecida da cabeça de impressão."
 
 #: fdmextruder.def.json
 msgctxt "machine_extruder_end_pos_x label"
@@ -148,11 +140,8 @@ msgstr "Posição Z de Purga do Extrusor"
 
 #: fdmextruder.def.json
 msgctxt "extruder_prime_pos_z description"
-msgid ""
+msgid "The Z coordinate of the position where the nozzle primes at the start of printing."
-"The Z coordinate of the position where the nozzle primes at the start of "
+msgstr "A coordenada Z da posição onde o bico faz a purga no início da impressão."
-"printing."
-msgstr ""
-"A coordenada Z da posição onde o bico faz a purga no início da impressão."
 
 #: fdmextruder.def.json
 msgctxt "platform_adhesion label"
@@ -171,11 +160,8 @@ msgstr "Posição X de Purga do Extrusor"
 
 #: fdmextruder.def.json
 msgctxt "extruder_prime_pos_x description"
-msgid ""
+msgid "The X coordinate of the position where the nozzle primes at the start of printing."
-"The X coordinate of the position where the nozzle primes at the start of "
+msgstr "A coordenada X da posição onde o bico faz a purga no início da impressão."
-"printing."
-msgstr ""
-"A coordenada X da posição onde o bico faz a purga no início da impressão."
 
 #: fdmextruder.def.json
 msgctxt "extruder_prime_pos_y label"
@@ -184,8 +170,5 @@ msgstr "Posição Y de Purga do Extrusor"
 
 #: fdmextruder.def.json
 msgctxt "extruder_prime_pos_y description"
-msgid ""
+msgid "The Y coordinate of the position where the nozzle primes at the start of printing."
-"The Y coordinate of the position where the nozzle primes at the start of "
+msgstr "A coordenada Y da posição onde o bico faz a purga no início da impressão."
-"printing."
-msgstr ""
-"A coordenada Y da posição onde o bico faz a purga no início da impressão."

resources/i18n/tr/fdmextruder.def.json.po

@@ -1,13 +1,18 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 #, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: Uranium json setting files\n"
+"Project-Id-Version: Cura 2.5\n"
-"Report-Msgid-Bugs-To: http://github.com/ultimaker/uranium\n"
+"Report-Msgid-Bugs-To: http://github.com/Ultimaker/Cura\n"
-"POT-Creation-Date: 2016-12-28 10:51+0000\n"
+"POT-Creation-Date: 2017-03-27 17:27+0000\n"
-"PO-Revision-Date: 2017-01-12 15:51+0100\n"
+"PO-Revision-Date: 2017-04-04 11:27+0200\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Last-Translator: Bothof <info@bothof.nl>\n"
-"Language-Team: LANGUAGE\n"
+"Language-Team: Bothof <info@bothof.nl>\n"
-"Language: \n"
+"Language: tr\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"

resources/qml/Actions.qml

@@ -12,7 +12,6 @@ Item
 {
     property alias newProject: newProjectAction;
     property alias open: openAction;
-    property alias loadWorkspace: loadWorkspaceAction;
     property alias quit: quitAction;
 
     property alias undo: undoAction;
@@ -32,6 +31,8 @@ Item
     property alias selectAll: selectAllAction;
     property alias deleteAll: deleteAllAction;
     property alias reloadAll: reloadAllAction;
+    property alias arrangeAll: arrangeAllAction;
+    property alias arrangeSelection: arrangeSelectionAction;
     property alias resetAllTranslation: resetAllTranslationAction;
     property alias resetAll: resetAllAction;
 
@@ -184,7 +185,7 @@ Item
         enabled: UM.Controller.toolsEnabled;
         iconName: "edit-delete";
         shortcut: StandardKey.Delete;
-        onTriggered: Printer.deleteSelection();
+        onTriggered: CuraApplication.deleteSelection();
     }
 
     Action
@@ -208,7 +209,7 @@ Item
         enabled: UM.Scene.numObjectsSelected > 1 ? true: false
         iconName: "object-group"
         shortcut: "Ctrl+G";
-        onTriggered: Printer.groupSelected();
+        onTriggered: CuraApplication.groupSelected();
     }
 
     Action
@@ -218,7 +219,7 @@ Item
         enabled: UM.Scene.isGroupSelected
         iconName: "object-ungroup"
         shortcut: "Ctrl+Shift+G";
-        onTriggered: Printer.ungroupSelected();
+        onTriggered: CuraApplication.ungroupSelected();
     }
 
     Action
@@ -228,7 +229,7 @@ Item
         enabled: UM.Scene.numObjectsSelected > 1 ? true: false
         iconName: "merge";
         shortcut: "Ctrl+Alt+G";
-        onTriggered: Printer.mergeSelected();
+        onTriggered: CuraApplication.mergeSelected();
     }
 
     Action
@@ -245,7 +246,7 @@ Item
         enabled: UM.Controller.toolsEnabled;
         iconName: "edit-select-all";
         shortcut: "Ctrl+A";
-        onTriggered: Printer.selectAll();
+        onTriggered: CuraApplication.selectAll();
     }
 
     Action
@@ -255,7 +256,7 @@ Item
         enabled: UM.Controller.toolsEnabled;
         iconName: "edit-delete";
         shortcut: "Ctrl+D";
-        onTriggered: Printer.deleteAll();
+        onTriggered: CuraApplication.deleteAll();
     }
 
     Action
@@ -264,27 +265,42 @@ Item
         text: catalog.i18nc("@action:inmenu menubar:file","Re&load All Models");
         iconName: "document-revert";
         shortcut: "F5"
-        onTriggered: Printer.reloadAll();
+        onTriggered: CuraApplication.reloadAll();
+    }
+
+    Action
+    {
+        id: arrangeAllAction;
+        text: catalog.i18nc("@action:inmenu menubar:edit","Arrange All Models");
+        onTriggered: Printer.arrangeAll();
+        shortcut: "Ctrl+R";
+    }
+
+    Action
+    {
+        id: arrangeSelectionAction;
+        text: catalog.i18nc("@action:inmenu menubar:edit","Arrange Selection");
+        onTriggered: Printer.arrangeSelection();
     }
 
     Action
     {
         id: resetAllTranslationAction;
         text: catalog.i18nc("@action:inmenu menubar:edit","Reset All Model Positions");
-        onTriggered: Printer.resetAllTranslation();
+        onTriggered: CuraApplication.resetAllTranslation();
     }
 
     Action
     {
         id: resetAllAction;
         text: catalog.i18nc("@action:inmenu menubar:edit","Reset All Model &Transformations");
-        onTriggered: Printer.resetAll();
+        onTriggered: CuraApplication.resetAll();
     }
 
     Action
     {
         id: openAction;
-        text: catalog.i18nc("@action:inmenu menubar:file","&Open File...");
+        text: catalog.i18nc("@action:inmenu menubar:file","&Open File(s)...");
         iconName: "document-open";
         shortcut: StandardKey.Open;
     }
@@ -296,12 +312,6 @@ Item
         shortcut: StandardKey.New
     }
 
-    Action
-    {
-        id: loadWorkspaceAction
-        text: catalog.i18nc("@action:inmenu menubar:file","&Open Project...");
-    }
-
     Action
     {
         id: showEngineLogAction;

resources/qml/AskOpenAsProjectOrModelsDialog.qml

@@ -0,0 +1,128 @@
+// Copyright (c) 2015 Ultimaker B.V.
+// Cura is released under the terms of the AGPLv3 or higher.
+
+import QtQuick 2.2
+import QtQuick.Controls 1.1
+import QtQuick.Controls.Styles 1.1
+import QtQuick.Layouts 1.1
+import QtQuick.Dialogs 1.1
+
+import UM 1.3 as UM
+import Cura 1.0 as Cura
+
+
+UM.Dialog
+{
+    // This dialog asks the user whether he/she wants to open a project file as a project or import models.
+    id: base
+
+    title: catalog.i18nc("@title:window", "Open project file")
+    width: 420
+    height: 140
+
+    maximumHeight: height
+    maximumWidth: width
+    minimumHeight: height
+    minimumWidth: width
+
+    modality: UM.Application.platform == "linux" ? Qt.NonModal : Qt.WindowModal;
+
+    property var fileUrl
+
+    function loadProjectFile(projectFile)
+    {
+        UM.WorkspaceFileHandler.readLocalFile(projectFile);
+
+        var meshName = backgroundItem.getMeshName(projectFile.toString());
+        backgroundItem.hasMesh(decodeURIComponent(meshName));
+    }
+
+    function loadModelFiles(fileUrls)
+    {
+        for (var i in fileUrls)
+        {
+            CuraApplication.readLocalFile(fileUrls[i]);
+        }
+
+        var meshName = backgroundItem.getMeshName(fileUrls[0].toString());
+        backgroundItem.hasMesh(decodeURIComponent(meshName));
+    }
+
+    onVisibleChanged:
+    {
+        if (visible)
+        {
+            var rememberMyChoice = UM.Preferences.getValue("cura/choice_on_open_project") != "always_ask";
+            rememberChoiceCheckBox.checked = rememberMyChoice;
+        }
+    }
+
+    Column
+    {
+        anchors.fill: parent
+        anchors.margins: UM.Theme.getSize("default_margin").width
+        anchors.left: parent.left
+        anchors.right: parent.right
+        spacing: UM.Theme.getSize("default_margin").width
+
+        Label
+        {
+            text: catalog.i18nc("@text:window", "This is a Cura project file. Would you like to open it as a project\nor import the models from it?")
+            anchors.margins: UM.Theme.getSize("default_margin").width
+            font: UM.Theme.getFont("default")
+            wrapMode: Text.WordWrap
+        }
+
+        CheckBox
+        {
+            id: rememberChoiceCheckBox
+            text: catalog.i18nc("@text:window", "Remember my choice")
+            anchors.margins: UM.Theme.getSize("default_margin").width
+            checked: UM.Preferences.getValue("cura/choice_on_open_project") != "always_ask"
+        }
+
+        // Buttons
+        Item
+        {
+            anchors.right: parent.right
+            anchors.left: parent.left
+            height: childrenRect.height
+
+            Button
+            {
+                id: openAsProjectButton
+                text: catalog.i18nc("@action:button", "Open as project");
+                anchors.right: importModelsButton.left
+                anchors.rightMargin: UM.Theme.getSize("default_margin").width
+                isDefault: true
+                onClicked:
+                {
+                    // update preference
+                    if (rememberChoiceCheckBox.checked)
+                        UM.Preferences.setValue("cura/choice_on_open_project", "open_as_project");
+
+                    // load this file as project
+                    base.hide();
+                    loadProjectFile(base.fileUrl);
+                }
+            }
+
+            Button
+            {
+                id: importModelsButton
+                text: catalog.i18nc("@action:button", "Import models");
+                anchors.right: parent.right
+                onClicked:
+                {
+                    // update preference
+                    if (rememberChoiceCheckBox.checked)
+                        UM.Preferences.setValue("cura/choice_on_open_project", "open_as_model");
+
+                    // load models from this project file
+                    base.hide();
+                    loadModelFiles([base.fileUrl]);
+                }
+            }
+        }
+    }
+}

resources/qml/Cura.qml

@@ -21,7 +21,7 @@ UM.MainWindow
     property bool monitoringPrint: false
     Component.onCompleted:
     {
-        Printer.setMinimumWindowSize(UM.Theme.getSize("window_minimum_size"))
+        CuraApplication.setMinimumWindowSize(UM.Theme.getSize("window_minimum_size"))
         // Workaround silly issues with QML Action's shortcut property.
         //
         // Currently, there is no way to define shortcuts as "Application Shortcut".
@@ -78,11 +78,6 @@ UM.MainWindow
 
                 RecentFilesMenu { }
 
-                MenuItem
-                {
-                    action: Cura.Actions.loadWorkspace
-                }
-
                 MenuSeparator { }
 
                 MenuItem
@@ -92,26 +87,18 @@ UM.MainWindow
                     iconName: "document-save-as";
                     onTriggered: UM.OutputDeviceManager.requestWriteSelectionToDevice("local_file", PrintInformation.jobName, { "filter_by_machine": false, "preferred_mimetype": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml"});
                 }
-                Menu
+
+                MenuItem
                 {
-                    id: saveAllMenu
+                    id: saveAsMenu
-                    title: catalog.i18nc("@title:menu menubar:file","Save &All")
+                    text: catalog.i18nc("@title:menu menubar:file", "Save &As...")
-                    iconName: "document-save-all";
+                    onTriggered:
-                    enabled: devicesModel.rowCount() > 0 && UM.Backend.progress > 0.99;
-
-                    Instantiator
                     {
-                        model: UM.OutputDevicesModel { id: devicesModel; }
+                        var localDeviceId = "local_file";
-
+                        UM.OutputDeviceManager.requestWriteToDevice(localDeviceId, PrintInformation.jobName, { "filter_by_machine": false, "preferred_mimetype": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml"});
-                        MenuItem
-                        {
-                            text: model.description;
-                            onTriggered: UM.OutputDeviceManager.requestWriteToDevice(model.id, PrintInformation.jobName, { "filter_by_machine": false, "preferred_mimetype": "application/vnd.ms-package.3dmanufacturing-3dmodel+xml"});
-                        }
-                        onObjectAdded: saveAllMenu.insertItem(index, object)
-                        onObjectRemoved: saveAllMenu.removeItem(object)
                     }
                 }
+
                 MenuItem
                 {
                     id: saveWorkspaceMenu
@@ -144,6 +131,7 @@ UM.MainWindow
                 MenuItem { action: Cura.Actions.redo; }
                 MenuSeparator { }
                 MenuItem { action: Cura.Actions.selectAll; }
+                MenuItem { action: Cura.Actions.arrangeAll; }
                 MenuItem { action: Cura.Actions.deleteSelection; }
                 MenuItem { action: Cura.Actions.deleteAll; }
                 MenuItem { action: Cura.Actions.resetAllTranslation; }
@@ -272,40 +260,7 @@ UM.MainWindow
                 {
                     if (drop.urls.length > 0)
                     {
-                        // Import models
+                        openDialog.handleOpenFileUrls(drop.urls);
-                        var imported_model = -1;
-                        for (var i in drop.urls)
-                        {
-                            // There is no endsWith in this version of JS...
-                            if ((drop.urls[i].length <= 12) || (drop.urls[i].substring(drop.urls[i].length-12) !== ".curaprofile")) {
-                                // Drop an object
-                                Printer.readLocalFile(drop.urls[i]);
-                                if (imported_model == -1)
-                                {
-                                    imported_model = i;
-                                }
-                            }
-                        }
-
-                        // Import profiles
-                        var import_result = Cura.ContainerManager.importProfiles(drop.urls);
-                        if (import_result.message !== "") {
-                            messageDialog.text = import_result.message
-                            if (import_result.status == "ok")
-                            {
-                                messageDialog.icon = StandardIcon.Information
-                            }
-                            else
-                            {
-                                messageDialog.icon = StandardIcon.Critical
-                            }
-                            messageDialog.open()
-                        }
-                        if (imported_model != -1)
-                        {
-                            var meshName = backgroundItem.getMeshName(drop.urls[imported_model].toString())
-                            backgroundItem.hasMesh(decodeURIComponent(meshName))
-                        }
                     }
                 }
             }
@@ -548,7 +503,7 @@ UM.MainWindow
         icon: StandardIcon.Question
         onYes:
         {
-            Printer.deleteAll();
+            CuraApplication.deleteAll();
             Cura.Actions.resetProfile.trigger();
         }
     }
@@ -649,6 +604,7 @@ UM.MainWindow
         MenuItem { action: Cura.Actions.multiplyObject; }
         MenuSeparator { }
         MenuItem { action: Cura.Actions.selectAll; }
+        MenuItem { action: Cura.Actions.arrangeAll; }
         MenuItem { action: Cura.Actions.deleteAll; }
         MenuItem { action: Cura.Actions.reloadAll; }
         MenuItem { action: Cura.Actions.resetAllTranslation; }
@@ -665,7 +621,7 @@ UM.MainWindow
             {
                 if(objectContextMenu.objectId != 0)
                 {
-                    Printer.deleteObject(objectContextMenu.objectId);
+                    CuraApplication.deleteObject(objectContextMenu.objectId);
                     objectContextMenu.objectId = 0;
                 }
             }
@@ -698,7 +654,7 @@ UM.MainWindow
             {
                 if(objectContextMenu.objectId != 0)
                 {
-                    Printer.centerObject(objectContextMenu.objectId);
+                    CuraApplication.centerObject(objectContextMenu.objectId);
                     objectContextMenu.objectId = 0;
                 }
             }
@@ -709,6 +665,7 @@ UM.MainWindow
     {
         id: contextMenu;
         MenuItem { action: Cura.Actions.selectAll; }
+        MenuItem { action: Cura.Actions.arrangeAll; }
         MenuItem { action: Cura.Actions.deleteAll; }
         MenuItem { action: Cura.Actions.reloadAll; }
         MenuItem { action: Cura.Actions.resetAllTranslation; }
@@ -752,27 +709,119 @@ UM.MainWindow
         id: openDialog;
 
         //: File open dialog title
-        title: catalog.i18nc("@title:window","Open file")
+        title: catalog.i18nc("@title:window","Open file(s)")
         modality: UM.Application.platform == "linux" ? Qt.NonModal : Qt.WindowModal;
         selectMultiple: true
         nameFilters: UM.MeshFileHandler.supportedReadFileTypes;
         folder: CuraApplication.getDefaultPath("dialog_load_path")
         onAccepted:
         {
-            //Because several implementations of the file dialog only update the folder
+            // Because several implementations of the file dialog only update the folder
-            //when it is explicitly set.
+            // when it is explicitly set.
             var f = folder;
             folder = f;
 
             CuraApplication.setDefaultPath("dialog_load_path", folder);
 
-            for(var i in fileUrls)
+            handleOpenFileUrls(fileUrls);
+        }
+
+        // Yeah... I know... it is a mess to put all those things here.
+        // There are lots of user interactions in this part of the logic, such as showing a warning dialog here and there,
+        // etc. This means it will come back and forth from time to time between QML and Python. So, separating the logic
+        // and view here may require more effort but make things more difficult to understand.
+        function handleOpenFileUrls(fileUrlList)
+        {
+            // look for valid project files
+            var projectFileUrlList = [];
+            var hasGcode = false;
+            var nonGcodeFileList = [];
+            for (var i in fileUrlList)
             {
-                Printer.readLocalFile(fileUrls[i])
+                var endsWithG = /\.g$/;
+                var endsWithGcode = /\.gcode$/;
+                if (endsWithG.test(fileUrlList[i]) || endsWithGcode.test(fileUrlList[i]))
+                {
+                    continue;
+                }
+                else if (CuraApplication.checkIsValidProjectFile(fileUrlList[i]))
+                {
+                    projectFileUrlList.push(fileUrlList[i]);
+                }
+                nonGcodeFileList.push(fileUrlList[i]);
+            }
+            hasGcode = nonGcodeFileList.length < fileUrlList.length;
+
+            // show a warning if selected multiple files together with Gcode
+            var hasProjectFile = projectFileUrlList.length > 0;
+            var selectedMultipleFiles = fileUrlList.length > 1;
+            if (selectedMultipleFiles && hasGcode)
+            {
+                infoMultipleFilesWithGcodeDialog.selectedMultipleFiles = selectedMultipleFiles;
+                infoMultipleFilesWithGcodeDialog.hasProjectFile = hasProjectFile;
+                infoMultipleFilesWithGcodeDialog.fileUrls = nonGcodeFileList.slice();
+                infoMultipleFilesWithGcodeDialog.projectFileUrlList = projectFileUrlList.slice();
+                infoMultipleFilesWithGcodeDialog.open();
+            }
+            else
+            {
+                handleOpenFiles(selectedMultipleFiles, hasProjectFile, fileUrlList, projectFileUrlList);
+            }
+        }
+
+        function handleOpenFiles(selectedMultipleFiles, hasProjectFile, fileUrlList, projectFileUrlList)
+        {
+            // we only allow opening one project file
+            if (selectedMultipleFiles && hasProjectFile)
+            {
+                openFilesIncludingProjectsDialog.fileUrls = fileUrlList.slice();
+                openFilesIncludingProjectsDialog.show();
+                return;
             }
 
-            var meshName = backgroundItem.getMeshName(fileUrls[0].toString())
+            if (hasProjectFile)
-            backgroundItem.hasMesh(decodeURIComponent(meshName))
+            {
+                var projectFile = projectFileUrlList[0];
+
+                // check preference
+                var choice = UM.Preferences.getValue("cura/choice_on_open_project");
+                if (choice == "open_as_project")
+                {
+                    openFilesIncludingProjectsDialog.loadProjectFile(projectFile);
+                }
+                else if (choice == "open_as_model")
+                {
+                    openFilesIncludingProjectsDialog.loadModelFiles([projectFile].slice());
+                }
+                else    // always ask
+                {
+                    // ask whether to open as project or as models
+                    askOpenAsProjectOrModelsDialog.fileUrl = projectFile;
+                    askOpenAsProjectOrModelsDialog.show();
+                }
+            }
+            else
+            {
+                openFilesIncludingProjectsDialog.loadModelFiles(fileUrlList.slice());
+            }
+        }
+    }
+
+    MessageDialog {
+        id: infoMultipleFilesWithGcodeDialog
+        title: catalog.i18nc("@title:window", "Open File(s)")
+        icon: StandardIcon.Information
+        standardButtons: StandardButton.Ok
+        text: catalog.i18nc("@text:window", "We have found one or more G-Code files within the files you have selected. You can only open one G-Code file at a time. If you want to open a G-Code file, please just select only one.")
+
+        property var selectedMultipleFiles
+        property var hasProjectFile
+        property var fileUrls
+        property var projectFileUrlList
+
+        onAccepted:
+        {
+            openDialog.handleOpenFiles(selectedMultipleFiles, hasProjectFile, fileUrls, projectFileUrlList);
         }
     }
 
@@ -782,38 +831,14 @@ UM.MainWindow
         onTriggered: openDialog.open()
     }
 
-    FileDialog
+    OpenFilesIncludingProjectsDialog
     {
-        id: openWorkspaceDialog;
+        id: openFilesIncludingProjectsDialog
-
-        //: File open dialog title
-        title: catalog.i18nc("@title:window","Open workspace")
-        modality: UM.Application.platform == "linux" ? Qt.NonModal : Qt.WindowModal;
-        selectMultiple: false
-        nameFilters: UM.WorkspaceFileHandler.supportedReadFileTypes;
-        folder: CuraApplication.getDefaultPath("dialog_load_path")
-        onAccepted:
-        {
-            //Because several implementations of the file dialog only update the folder
-            //when it is explicitly set.
-            var f = folder;
-            folder = f;
-
-            CuraApplication.setDefaultPath("dialog_load_path", folder);
-
-            for(var i in fileUrls)
-            {
-                UM.WorkspaceFileHandler.readLocalFile(fileUrls[i])
-            }
-            var meshName = backgroundItem.getMeshName(fileUrls[0].toString())
-            backgroundItem.hasMesh(decodeURIComponent(meshName))
-        }
     }
 
-    Connections
+    AskOpenAsProjectOrModelsDialog
     {
-        target: Cura.Actions.loadWorkspace
+        id: askOpenAsProjectOrModelsDialog
-        onTriggered: openWorkspaceDialog.open()
     }
 
     EngineLog
@@ -854,7 +879,7 @@ UM.MainWindow
 
         function start(id)
         {
-            var actions =  Cura.MachineActionManager.getFirstStartActions(id)
+            var actions = Cura.MachineActionManager.getFirstStartActions(id)
             resetPages() // Remove previous pages
 
             for (var i = 0; i < actions.length; i++)
@@ -876,14 +901,14 @@ UM.MainWindow
     {
         id: messageDialog
         modality: Qt.ApplicationModal
-        onAccepted: Printer.messageBoxClosed(clickedButton)
+        onAccepted: CuraApplication.messageBoxClosed(clickedButton)
-        onApply: Printer.messageBoxClosed(clickedButton)
+        onApply: CuraApplication.messageBoxClosed(clickedButton)
-        onDiscard: Printer.messageBoxClosed(clickedButton)
+        onDiscard: CuraApplication.messageBoxClosed(clickedButton)
-        onHelp: Printer.messageBoxClosed(clickedButton)
+        onHelp: CuraApplication.messageBoxClosed(clickedButton)
-        onNo: Printer.messageBoxClosed(clickedButton)
+        onNo: CuraApplication.messageBoxClosed(clickedButton)
-        onRejected: Printer.messageBoxClosed(clickedButton)
+        onRejected: CuraApplication.messageBoxClosed(clickedButton)
-        onReset: Printer.messageBoxClosed(clickedButton)
+        onReset: CuraApplication.messageBoxClosed(clickedButton)
-        onYes: Printer.messageBoxClosed(clickedButton)
+        onYes: CuraApplication.messageBoxClosed(clickedButton)
     }
 
     Connections
@@ -913,7 +938,6 @@ UM.MainWindow
         {
             discardOrKeepProfileChangesDialog.show()
         }
-
     }
 
     Connections
@@ -963,4 +987,3 @@ UM.MainWindow
         }
     }
 }
-

resources/qml/DiscardOrKeepProfileChangesDialog.qml

@@ -4,6 +4,7 @@
 import QtQuick 2.1
 import QtQuick.Controls 1.1
 import QtQuick.Dialogs 1.2
+import QtQuick.Window 2.1
 
 import UM 1.2 as UM
 import Cura 1.1 as Cura
@@ -13,17 +14,26 @@ UM.Dialog
     id: base
     title: catalog.i18nc("@title:window", "Discard or Keep changes")
 
-    width: 800
+    width: 800 * Screen.devicePixelRatio
-    height: 400
+    height: 400 * Screen.devicePixelRatio
     property var changesModel: Cura.UserChangesModel{ id: userChangesModel}
     onVisibilityChanged:
     {
         if(visible)
         {
             changesModel.forceUpdate()
-        }
 
-        discardOrKeepProfileChangesDropDownButton.currentIndex = UM.Preferences.getValue("cura/choice_on_profile_override")
+            discardOrKeepProfileChangesDropDownButton.currentIndex = 0;
+            for (var i = 0; i < discardOrKeepProfileChangesDropDownButton.model.count; ++i)
+            {
+                var code = discardOrKeepProfileChangesDropDownButton.model.get(i).code;
+                if (code == UM.Preferences.getValue("cura/choice_on_profile_override"))
+                {
+                    discardOrKeepProfileChangesDropDownButton.currentIndex = i;
+                    break;
+                }
+            }
+        }
     }
 
     Column
@@ -59,7 +69,7 @@ UM.Dialog
             anchors.margins: UM.Theme.getSize("default_margin").width
             anchors.left: parent.left
             anchors.right: parent.right
-            height: base.height - 200
+            height: base.height - 150 * Screen.devicePixelRatio
             id: tableView
             Component
             {
@@ -133,30 +143,35 @@ UM.Dialog
             ComboBox
             {
                 id: discardOrKeepProfileChangesDropDownButton
-                model: [
-                    catalog.i18nc("@option:discardOrKeep", "Always ask me this"),
-                    catalog.i18nc("@option:discardOrKeep", "Discard and never ask again"),
-                    catalog.i18nc("@option:discardOrKeep", "Keep and never ask again")
-                ]
                 width: 300
-                currentIndex: UM.Preferences.getValue("cura/choice_on_profile_override")
+
-                onCurrentIndexChanged:
+                model: ListModel
                 {
-                    UM.Preferences.setValue("cura/choice_on_profile_override", currentIndex)
+                    id: discardOrKeepProfileListModel
-                    if (currentIndex == 1) {
+
-                        // 1 == "Discard and never ask again", so only enable the "Discard" button
+                    Component.onCompleted: {
-                        discardButton.enabled = true
+                        append({ text: catalog.i18nc("@option:discardOrKeep", "Always ask me this"), code: "always_ask" })
-                        keepButton.enabled = false
+                        append({ text: catalog.i18nc("@option:discardOrKeep", "Discard and never ask again"), code: "always_discard" })
+                        append({ text: catalog.i18nc("@option:discardOrKeep", "Keep and never ask again"), code: "always_keep" })
                     }
-                    else if (currentIndex == 2) {
+                }
-                        // 2 == "Keep and never ask again", so only enable the "Keep" button
+
-                        keepButton.enabled = true
+                onActivated:
-                        discardButton.enabled = false
+                {
+                    var code = model.get(index).code;
+                    UM.Preferences.setValue("cura/choice_on_profile_override", code);
+
+                    if (code == "always_keep") {
+                        keepButton.enabled = true;
+                        discardButton.enabled = false;
+                    }
+                    else if (code == "always_discard") {
+                        keepButton.enabled = false;
+                        discardButton.enabled = true;
                     }
                     else {
-                        // 0 == "Always ask me this", so show both
+                        keepButton.enabled = true;
-                        keepButton.enabled = true
+                        discardButton.enabled = true;
-                        discardButton.enabled = true
                     }
                 }
             }
@@ -167,7 +182,7 @@ UM.Dialog
             anchors.right: parent.right
             anchors.left: parent.left
             anchors.margins: UM.Theme.getSize("default_margin").width
-            height:childrenRect.height
+            height: childrenRect.height
 
             Button
             {
@@ -176,7 +191,7 @@ UM.Dialog
                 anchors.right: parent.right
                 onClicked:
                 {
-                    Printer.discardOrKeepProfileChangesClosed("discard")
+                    CuraApplication.discardOrKeepProfileChangesClosed("discard")
                     base.hide()
                 }
                 isDefault: true
@@ -190,7 +205,7 @@ UM.Dialog
                 anchors.rightMargin: UM.Theme.getSize("default_margin").width
                 onClicked:
                 {
-                    Printer.discardOrKeepProfileChangesClosed("keep")
+                    CuraApplication.discardOrKeepProfileChangesClosed("keep")
                     base.hide()
                 }
             }

resources/qml/EngineLog.qml

@@ -27,7 +27,7 @@ UM.Dialog
             interval: 1000;
             running: false;
             repeat: true;
-            onTriggered: textArea.text = Printer.getEngineLog();
+            onTriggered: textArea.text = CuraApplication.getEngineLog();
         }
         UM.I18nCatalog{id: catalog; name:"cura"}
     }
@@ -43,7 +43,7 @@ UM.Dialog
     {
         if(visible)
         {
-            textArea.text = Printer.getEngineLog();
+            textArea.text = CuraApplication.getEngineLog();
             updateTimer.start();
         } else
         {

resources/qml/JobSpecs.qml

@@ -12,7 +12,7 @@ import Cura 1.0 as Cura
 Item {
     id: base
 
-    property bool activity: Printer.platformActivity
+    property bool activity: CuraApplication.platformActivity
     property string fileBaseName
     property variant activeMachineName: Cura.MachineManager.activeMachineName
 
@@ -141,7 +141,7 @@ Item {
         verticalAlignment: Text.AlignVCenter
         font: UM.Theme.getFont("small")
         color: UM.Theme.getColor("text_subtext")
-        text: Printer.getSceneBoundingBoxString
+        text: CuraApplication.getSceneBoundingBoxString
     }
 
     Rectangle

resources/qml/Menus/RecentFilesMenu.qml

@@ -4,7 +4,7 @@
 import QtQuick 2.2
 import QtQuick.Controls 1.1
 
-import UM 1.2 as UM
+import UM 1.3 as UM
 import Cura 1.0 as Cura
 
 Menu
@@ -13,11 +13,11 @@ Menu
     title: catalog.i18nc("@title:menu menubar:file", "Open &Recent")
     iconName: "document-open-recent";
 
-    enabled: Printer.recentFiles.length > 0;
+    enabled: CuraApplication.recentFiles.length > 0;
 
     Instantiator
     {
-        model: Printer.recentFiles
+        model: CuraApplication.recentFiles
         MenuItem
         {
             text:
@@ -25,8 +25,44 @@ Menu
                 var path = modelData.toString()
                 return (index + 1) + ". " + path.slice(path.lastIndexOf("/") + 1);
             }
-            onTriggered: {
+            onTriggered:
-                Printer.readLocalFile(modelData);
+            {
+                var toShowDialog = false;
+                var toOpenAsProject = false;
+                var toOpenAsModel = false;
+
+                if (CuraApplication.checkIsValidProjectFile(modelData)) {
+                    // check preference
+                    var choice = UM.Preferences.getValue("cura/choice_on_open_project");
+
+                    if (choice == "open_as_project")
+                    {
+                        toOpenAsProject = true;
+                    }else if (choice == "open_as_model"){
+                        toOpenAsModel = true;
+                    }else{
+                        toShowDialog = true;
+                    }
+                }
+                else {
+                    toOpenAsModel = true;
+                }
+
+                if (toShowDialog) {
+                    askOpenAsProjectOrModelsDialog.fileUrl = modelData;
+                    askOpenAsProjectOrModelsDialog.show();
+                    return;
+                }
+
+                // open file in the prefered way
+                if (toOpenAsProject)
+                {
+                    UM.WorkspaceFileHandler.readLocalFile(modelData);
+                }
+                else if (toOpenAsModel)
+                {
+                    CuraApplication.readLocalFile(modelData);
+                }
                 var meshName = backgroundItem.getMeshName(modelData.toString())
                 backgroundItem.hasMesh(decodeURIComponent(meshName))
             }
@@ -34,4 +70,9 @@ Menu
         onObjectAdded: menu.insertItem(index, object)
         onObjectRemoved: menu.removeItem(object)
     }
+
+    Cura.AskOpenAsProjectOrModelsDialog
+    {
+        id: askOpenAsProjectOrModelsDialog
+    }
 }

resources/qml/MonitorButton.qml

@@ -80,7 +80,7 @@ Item
         }
     }
 
-    property bool activity: Printer.platformActivity;
+    property bool activity: CuraApplication.platformActivity;
     property int totalHeight: childrenRect.height + UM.Theme.getSize("default_margin").height
     property string fileBaseName
     property string statusText:
@@ -205,8 +205,8 @@ Item
             onAdditionalComponentsChanged:
             {
                 if(areaId == "monitorButtons") {
-                    for (var component in Printer.additionalComponents["monitorButtons"]) {
+                    for (var component in CuraApplication.additionalComponents["monitorButtons"]) {
-                        Printer.additionalComponents["monitorButtons"][component].parent = additionalComponentsRow
+                        CuraApplication.additionalComponents["monitorButtons"][component].parent = additionalComponentsRow
                     }
                 }
             }

resources/qml/MultiplyObjectOptions.qml

@@ -20,7 +20,7 @@ UM.Dialog
     height: minimumHeight
 
     property var objectId: 0;
-    onAccepted: Printer.multiplyObject(base.objectId, parseInt(copiesField.text))
+    onAccepted: CuraApplication.multiplyObject(base.objectId, parseInt(copiesField.text))
 
     property variant catalog: UM.I18nCatalog { name: "cura" }
 

resources/qml/OpenFilesIncludingProjectsDialog.qml

@@ -0,0 +1,109 @@
+// Copyright (c) 2017 Ultimaker B.V.
+// Cura is released under the terms of the AGPLv3 or higher.
+
+import QtQuick 2.2
+import QtQuick.Controls 1.1
+import QtQuick.Controls.Styles 1.1
+import QtQuick.Layouts 1.1
+import QtQuick.Dialogs 1.1
+
+import UM 1.3 as UM
+import Cura 1.0 as Cura
+
+UM.Dialog
+{
+    // This dialog asks the user whether he/she wants to open the project file we have detected or the model files.
+    id: base
+
+    title: catalog.i18nc("@title:window", "Open file(s)")
+    width: 420
+    height: 170
+
+    maximumHeight: height
+    maximumWidth: width
+    minimumHeight: height
+    minimumWidth: width
+
+    modality: UM.Application.platform == "linux" ? Qt.NonModal : Qt.WindowModal;
+
+    property var fileUrls: []
+    property int spacerHeight: 10
+
+    function loadProjectFile(projectFile)
+    {
+        UM.WorkspaceFileHandler.readLocalFile(projectFile);
+
+        var meshName = backgroundItem.getMeshName(projectFile.toString());
+        backgroundItem.hasMesh(decodeURIComponent(meshName));
+    }
+
+    function loadModelFiles(fileUrls)
+    {
+        for (var i in fileUrls)
+        {
+            CuraApplication.readLocalFile(fileUrls[i]);
+        }
+
+        var meshName = backgroundItem.getMeshName(fileUrls[0].toString());
+        backgroundItem.hasMesh(decodeURIComponent(meshName));
+    }
+
+    Column
+    {
+        anchors.fill: parent
+        anchors.margins: UM.Theme.getSize("default_margin").width
+        anchors.left: parent.left
+        anchors.right: parent.right
+        spacing: UM.Theme.getSize("default_margin").width
+
+        Text
+        {
+            text: catalog.i18nc("@text:window", "We have found one or more project file(s) within the files you\nhave selected. You can open only one project file at a time. We\nsuggest to only import models from those files. Would you like\nto proceed?")
+            anchors.margins: UM.Theme.getSize("default_margin").width
+            font: UM.Theme.getFont("default")
+            wrapMode: Text.WordWrap
+        }
+
+        Item // Spacer
+        {
+            height: base.spacerHeight
+            width: height
+        }
+
+        // Buttons
+        Item
+        {
+            anchors.right: parent.right
+            anchors.left: parent.left
+            height: childrenRect.height
+
+            Button
+            {
+                id: cancelButton
+                text: catalog.i18nc("@action:button", "Cancel");
+                anchors.right: importAllAsModelsButton.left
+                anchors.rightMargin: UM.Theme.getSize("default_margin").width
+                onClicked:
+                {
+                    // cancel
+                    base.hide();
+                }
+            }
+
+            Button
+            {
+                id: importAllAsModelsButton
+                text: catalog.i18nc("@action:button", "Import all as models");
+                anchors.right: parent.right
+                isDefault: true
+                onClicked:
+                {
+                    // load models from all selected file
+                    loadModelFiles(base.fileUrls);
+
+                    base.hide();
+                }
+            }
+        }
+    }
+}

resources/qml/Preferences/GeneralPage.qml

@@ -25,6 +25,30 @@ UM.PreferencesPage
         }
     }
 
+    function setDefaultDiscardOrKeepProfile(code)
+    {
+        for (var i = 0; i < choiceOnProfileOverrideDropDownButton.model.count; i++)
+        {
+            if (choiceOnProfileOverrideDropDownButton.model.get(i).code == code)
+            {
+                choiceOnProfileOverrideDropDownButton.currentIndex = i;
+                break;
+            }
+        }
+    }
+
+    function setDefaultOpenProjectOption(code)
+    {
+        for (var i = 0; i < choiceOnOpenProjectDropDownButton.model.count; ++i)
+        {
+            if (choiceOnOpenProjectDropDownButton.model.get(i).code == code)
+            {
+                choiceOnOpenProjectDropDownButton.currentIndex = i
+                break;
+            }
+        }
+    }
+
     function reset()
     {
         UM.Preferences.resetPreference("general/language")
@@ -49,8 +73,12 @@ UM.PreferencesPage
         invertZoomCheckbox.checked = boolCheck(UM.Preferences.getValue("view/invert_zoom"))
         UM.Preferences.resetPreference("view/top_layer_count");
         topLayerCountCheckbox.checked = boolCheck(UM.Preferences.getValue("view/top_layer_count"))
+
         UM.Preferences.resetPreference("cura/choice_on_profile_override")
-        choiceOnProfileOverrideDropDownButton.currentIndex = UM.Preferences.getValue("cura/choice_on_profile_override")
+        setDefaultDiscardOrKeepProfile(UM.Preferences.getValue("cura/choice_on_profile_override"))
+
+        UM.Preferences.resetPreference("cura/choice_on_open_project")
+        setDefaultOpenProjectOption(UM.Preferences.getValue("cura/choice_on_open_project"))
 
         if (plugins.find("id", "SliceInfoPlugin") > -1) {
             UM.Preferences.resetPreference("info/send_slice_info")
@@ -105,6 +133,8 @@ UM.PreferencesPage
                             append({ text: "Suomi", code: "fi" })
                             append({ text: "Français", code: "fr" })
                             append({ text: "Italiano", code: "it" })
+                            append({ text: "日本語", code: "jp" })
+                            append({ text: "한국어", code: "ko" })
                             append({ text: "Nederlands", code: "nl" })
                             append({ text: "Português do Brasil", code: "ptbr" })
                             append({ text: "Русский", code: "ru" })
@@ -231,6 +261,7 @@ UM.PreferencesPage
                     text: catalog.i18nc("@action:button","Center camera when item is selected");
                     checked: boolCheck(UM.Preferences.getValue("view/center_on_select"))
                     onClicked: UM.Preferences.setValue("view/center_on_select",  checked)
+                    enabled: Qt.platform.os != "windows" // Hack: disable the feature on windows as it's broken for pyqt 5.7.1.
                 }
             }
 
@@ -376,6 +407,56 @@ UM.PreferencesPage
                 }
             }
 
+            UM.TooltipArea {
+                width: childrenRect.width
+                height: childrenRect.height
+                text: catalog.i18nc("@info:tooltip", "Default behavior when opening a project file")
+
+                Column
+                {
+                    spacing: 4
+
+                    Label
+                    {
+                        text: catalog.i18nc("@window:text", "Default behavior when opening a project file: ")
+                    }
+
+                    ComboBox
+                    {
+                        id: choiceOnOpenProjectDropDownButton
+                        width: 200
+
+                        model: ListModel
+                        {
+                            id: openProjectOptionModel
+
+                            Component.onCompleted: {
+                                append({ text: catalog.i18nc("@option:openProject", "Always ask"), code: "always_ask" })
+                                append({ text: catalog.i18nc("@option:openProject", "Always open as a project"), code: "open_as_project" })
+                                append({ text: catalog.i18nc("@option:openProject", "Always import models"), code: "open_as_model" })
+                            }
+                        }
+
+                        currentIndex:
+                        {
+                            var index = 0;
+                            var currentChoice = UM.Preferences.getValue("cura/choice_on_open_project");
+                            for (var i = 0; i < model.count; ++i)
+                            {
+                                if (model.get(i).code == currentChoice)
+                                {
+                                    index = i;
+                                    break;
+                                }
+                            }
+                            return index;
+                        }
+
+                        onActivated: UM.Preferences.setValue("cura/choice_on_open_project", model.get(index).code)
+                    }
+                }
+            }
+
             Item
             {
                 //: Spacer
@@ -383,12 +464,6 @@ UM.PreferencesPage
                 width: UM.Theme.getSize("default_margin").width
             }
 
-            Label
-            {
-                font.bold: true
-                text: catalog.i18nc("@label", "Override Profile")
-            }
-
             UM.TooltipArea
             {
                 width: childrenRect.width;
@@ -396,18 +471,48 @@ UM.PreferencesPage
 
                 text: catalog.i18nc("@info:tooltip", "When you have made changes to a profile and switched to a different one, a dialog will be shown asking whether you want to keep your modifications or not, or you can choose a default behaviour and never show that dialog again.")
 
-                ComboBox
+                Column
                 {
-                    id: choiceOnProfileOverrideDropDownButton
+                    spacing: 4
 
-                    model: [
+                    Label
-                        catalog.i18nc("@option:discardOrKeep", "Always ask me this"),
+                    {
-                        catalog.i18nc("@option:discardOrKeep", "Discard and never ask again"),
+                        font.bold: true
-                        catalog.i18nc("@option:discardOrKeep", "Keep and never ask again")
+                        text: catalog.i18nc("@label", "Override Profile")
-                    ]
+                    }
-                    width: 300
+
-                    currentIndex: UM.Preferences.getValue("cura/choice_on_profile_override")
+                    ComboBox
-                    onCurrentIndexChanged: UM.Preferences.setValue("cura/choice_on_profile_override", currentIndex)
+                    {
+                        id: choiceOnProfileOverrideDropDownButton
+                        width: 200
+
+                        model: ListModel
+                        {
+                            id: discardOrKeepProfileListModel
+
+                            Component.onCompleted: {
+                                append({ text: catalog.i18nc("@option:discardOrKeep", "Always ask me this"), code: "always_ask" })
+                                append({ text: catalog.i18nc("@option:discardOrKeep", "Discard and never ask again"), code: "always_discard" })
+                                append({ text: catalog.i18nc("@option:discardOrKeep", "Keep and never ask again"), code: "always_keep" })
+                            }
+                        }
+
+                        currentIndex:
+                        {
+                            var index = 0;
+                            var code = UM.Preferences.getValue("cura/choice_on_profile_override");
+                            for (var i = 0; i < model.count; ++i)
+                            {
+                                if (model.get(i).code == code)
+                                {
+                                    index = i;
+                                    break;
+                                }
+                            }
+                            return index;
+                        }
+                        onActivated: UM.Preferences.setValue("cura/choice_on_profile_override", model.get(index).code)
+                    }
                 }
             }
 

resources/qml/Preferences/MachinesPage.qml

@@ -43,7 +43,7 @@ UM.ManagementPage
         {
             text: catalog.i18nc("@action:button", "Add");
             iconName: "list-add";
-            onClicked: Printer.requestAddPrinter()
+            onClicked: CuraApplication.requestAddPrinter()
         },
         Button
         {
@@ -216,8 +216,8 @@ UM.ManagementPage
 
             Component.onCompleted:
             {
-                for (var component in Printer.additionalComponents["machinesDetailPane"]) {
+                for (var component in CuraApplication.additionalComponents["machinesDetailPane"]) {
-                    Printer.additionalComponents["machinesDetailPane"][component].parent = additionalComponentsColumn
+                    CuraApplication.additionalComponents["machinesDetailPane"][component].parent = additionalComponentsColumn
                 }
             }
         }
@@ -227,8 +227,8 @@ UM.ManagementPage
             onAdditionalComponentsChanged:
             {
                 if(areaId == "machinesDetailPane") {
-                    for (var component in Printer.additionalComponents["machinesDetailPane"]) {
+                    for (var component in CuraApplication.additionalComponents["machinesDetailPane"]) {
-                        Printer.additionalComponents["machinesDetailPane"][component].parent = additionalComponentsColumn
+                        CuraApplication.additionalComponents["machinesDetailPane"][component].parent = additionalComponentsColumn
                     }
                 }
             }

resources/qml/Preferences/MaterialView.qml

@@ -153,7 +153,7 @@ TabView
                     value: base.getMaterialPreferenceValue(properties.guid, "spool_cost")
                     prefix: base.currency + " "
                     decimals: 2
-                    maximumValue: 1000
+                    maximumValue: 100000000
 
                     onValueChanged: {
                         base.setMaterialPreferenceValue(properties.guid, "spool_cost", parseFloat(value))