diff --git a/cura/ConvexHullJob.py b/cura/ConvexHullJob.py
index 9de4f13073..3832e53df6 100644
--- a/cura/ConvexHullJob.py
+++ b/cura/ConvexHullJob.py
@@ -25,20 +25,22 @@ class ConvexHullJob(Job):
                 child_hull = child.callDecoration("getConvexHull") 
                 if child_hull:
                     hull.setPoints(numpy.append(hull.getPoints(), child_hull.getPoints(), axis = 0))
-                    
+
                 if hull.getPoints().size < 3:
                     self._node.callDecoration("setConvexHull", None)
                     self._node.callDecoration("setConvexHullJob", None)
                     return
-                    
+
         else: 
             if not self._node.getMeshData():
                 return
             mesh = self._node.getMeshData()
             vertex_data = mesh.getTransformed(self._node.getWorldTransformation()).getVertices()
+            # Don't use data below 0. TODO; We need a better check for this as this gives poor results for meshes with long edges.
+            vertex_data = vertex_data[vertex_data[:,1]>0]
 
             hull = Polygon(numpy.rint(vertex_data[:, [0, 2]]).astype(int))
-        
+
         # First, calculate the normal convex hull around the points
         hull = hull.getConvexHull()
 
diff --git a/cura/CuraApplication.py b/cura/CuraApplication.py
index 6e64acc4e6..e2908c9f97 100644
--- a/cura/CuraApplication.py
+++ b/cura/CuraApplication.py
@@ -125,7 +125,7 @@ class CuraApplication(QtApplication):
 
         t = controller.getTool("TranslateTool")
         if t:
-            t.setEnabledAxis([ToolHandle.XAxis, ToolHandle.ZAxis])
+            t.setEnabledAxis([ToolHandle.XAxis, ToolHandle.YAxis,ToolHandle.ZAxis])
 
         Selection.selectionChanged.connect(self.onSelectionChanged)
 
diff --git a/cura/PlatformPhysics.py b/cura/PlatformPhysics.py
index 7f6c1df3b9..f1fc7fd0b1 100644
--- a/cura/PlatformPhysics.py
+++ b/cura/PlatformPhysics.py
@@ -19,6 +19,7 @@ from . import ConvexHullJob
 
 import time
 import threading
+import copy
 
 class PlatformPhysics:
     def __init__(self, controller, volume):
@@ -53,16 +54,21 @@ class PlatformPhysics:
                 self._change_timer.start()
                 continue
 
+            build_volume_bounding_box = copy.deepcopy(self._build_volume.getBoundingBox())
+            build_volume_bounding_box.setBottom(-9001) # Ignore intersections with the bottom
+
             # Mark the node as outside the build volume if the bounding box test fails.
-            if self._build_volume.getBoundingBox().intersectsBox(bbox) != AxisAlignedBox.IntersectionResult.FullIntersection:
+            if build_volume_bounding_box.intersectsBox(bbox) != AxisAlignedBox.IntersectionResult.FullIntersection:
                 node._outside_buildarea = True
             else:
                 node._outside_buildarea = False
 
-            # Move the node upwards if the bottom is below the build platform.
+            # Move it downwards if bottom is above platform
             move_vector = Vector()
-            if not Float.fuzzyCompare(bbox.bottom, 0.0):
+            if bbox.bottom > 0:
                 move_vector.setY(-bbox.bottom)
+            #if not Float.fuzzyCompare(bbox.bottom, 0.0):
+            #   pass#move_vector.setY(-bbox.bottom)
 
             # If there is no convex hull for the node, start calculating it and continue.
             if not node.getDecorator(ConvexHullDecorator):