Add one more layer to the decision tree

cura/Machines/MaterialManager.py

@@ -4,8 +4,7 @@
 from collections import defaultdict, OrderedDict
 import copy
 import uuid
-from typing import Dict, cast
-from typing import Optional, TYPE_CHECKING
+from typing import Dict, Optional, TYPE_CHECKING
 
 from PyQt5.Qt import QTimer, QObject, pyqtSignal, pyqtSlot
 
@@ -18,6 +17,7 @@ from UM.Util import parseBool
 
 from .MaterialNode import MaterialNode
 from .MaterialGroup import MaterialGroup
+from .VariantType import VariantType
 
 if TYPE_CHECKING:
     from UM.Settings.DefinitionContainer import DefinitionContainer
@@ -47,7 +47,7 @@ class MaterialManager(QObject):
 
         self._fallback_materials_map = dict()  # material_type -> generic material metadata
         self._material_group_map = dict()  # root_material_id -> MaterialGroup
-        self._diameter_machine_variant_material_map = dict()  # approximate diameter str -> dict(machine_definition_id -> MaterialNode)
+        self._diameter_machine_nozzle_buildplate_material_map = dict()  # approximate diameter str -> dict(machine_definition_id -> MaterialNode)
 
         # We're using these two maps to convert between the specific diameter material id and the generic material id
         # because the generic material ids are used in qualities and definitions, while the specific diameter material is meant
@@ -186,10 +186,11 @@ class MaterialManager(QObject):
             for root_material_id in data_dict.values():
                 self._diameter_material_map[root_material_id] = default_root_material_id
 
+        variant_manager = self._application.getVariantManager()
+
         # Map #4
-        #    "machine" -> "variant_name" -> "root material ID" -> specific material InstanceContainer
-        # Construct the "machine" -> "variant" -> "root material ID" -> specific material InstanceContainer
-        self._diameter_machine_variant_material_map = dict()
+        # "machine" -> "nozzle name" -> "buildplate name" -> "root material ID" -> specific material InstanceContainer
+        self._diameter_machine_nozzle_buildplate_material_map = dict()
         for material_metadata in material_metadatas.values():
             # We don't store empty material in the lookup tables
             if material_metadata["id"] == "empty_material":
@@ -199,36 +200,62 @@ class MaterialManager(QObject):
             definition = material_metadata["definition"]
             approximate_diameter = material_metadata["approximate_diameter"]
 
-            if approximate_diameter not in self._diameter_machine_variant_material_map:
-                self._diameter_machine_variant_material_map[approximate_diameter] = {}
+            if approximate_diameter not in self._diameter_machine_nozzle_buildplate_material_map:
+                self._diameter_machine_nozzle_buildplate_material_map[approximate_diameter] = {}
 
-            machine_variant_material_map = self._diameter_machine_variant_material_map[approximate_diameter]
-            if definition not in machine_variant_material_map:
-                machine_variant_material_map[definition] = MaterialNode()
+            machine_nozzle_buildplate_material_map = self._diameter_machine_nozzle_buildplate_material_map[approximate_diameter]
+            if definition not in machine_nozzle_buildplate_material_map:
+                machine_nozzle_buildplate_material_map[definition] = MaterialNode()
 
-            machine_node = machine_variant_material_map[definition]
-            variant_name = material_metadata.get("variant_name")
-            if not variant_name:
-                # if there is no variant, this material is for the machine, so put its metadata in the machine node.
+            machine_node = machine_nozzle_buildplate_material_map[definition]
+            nozzle_name = material_metadata.get("variant_name")
+            buildplate_name = material_metadata.get("buildplate_name")
+            if not nozzle_name:
+                # if there is no nozzle, this material is for the machine, so put its metadata in the machine node.
                 machine_node.material_map[root_material_id] = MaterialNode(material_metadata)
             else:
-                # this material is variant-specific, so we save it in a variant-specific node under the
+                # this material is nozzle-specific, so we save it in a nozzle-specific node under the
                 # machine-specific node
 
-                # Check first if the variant exist in the manager
-                existing_variant = self._application.getVariantManager().getVariantNode(definition, variant_name)
-                if existing_variant is not None:
-                    if variant_name not in machine_node.children_map:
-                        machine_node.children_map[variant_name] = MaterialNode()
+                # Check first if the nozzle exists in the manager
+                existing_nozzle = variant_manager.getVariantNode(definition, nozzle_name, VariantType.NOZZLE)
+                if existing_nozzle is not None:
+                    if nozzle_name not in machine_node.children_map:
+                        machine_node.children_map[nozzle_name] = MaterialNode()
+
+                    nozzle_node = machine_node.children_map[nozzle_name]
+
+                    # Check build plate node
+                    if not buildplate_name:
+                        # if there is no buildplate, this material is for the machine, so put its metadata in the machine node.
+                        if root_material_id in nozzle_node.material_map:  # We shouldn't have duplicated nozzle-specific materials for the same machine.
+                            ConfigurationErrorMessage.getInstance().addFaultyContainers(root_material_id)
+                            continue
+                        nozzle_node.material_map[root_material_id] = MaterialNode(material_metadata)
+                    else:
+                        # this material is nozzle-and-buildplate-specific, so we save it in a buildplate-specific node
+                        # under the machine-specific node
+
+                        # Check first if the buildplate exists in the manager
+                        existing_buildplate = variant_manager.getVariantNode(definition, buildplate_name, VariantType.BUILD_PLATE)
+                        if existing_buildplate is not None:
+                            if buildplate_name not in nozzle_node.children_map:
+                                nozzle_node.children_map[buildplate_name] = MaterialNode()
+
+                            buildplate_node = nozzle_node.children_map[buildplate_name]
+                            if root_material_id in buildplate_node.material_map:  # We shouldn't have duplicated nozzle-and-buildplate-specific materials for the same machine.
+                                ConfigurationErrorMessage.getInstance().addFaultyContainers(root_material_id)
+                                continue
+                            buildplate_node.material_map[root_material_id] = MaterialNode(material_metadata)
+
+                        else:
+                            # Add this container id to the wrong containers list in the registry
+                            Logger.log("w", "Not adding {id} to the material manager because the buildplate does not exist.".format(id = material_metadata["id"]))
+                            self._container_registry.addWrongContainerId(material_metadata["id"])
 
-                    variant_node = machine_node.children_map[variant_name]
-                    if root_material_id in variant_node.material_map:  # We shouldn't have duplicated variant-specific materials for the same machine.
-                        ConfigurationErrorMessage.getInstance().addFaultyContainers(root_material_id)
-                        continue
-                    variant_node.material_map[root_material_id] = MaterialNode(material_metadata)
                 else:
                     # Add this container id to the wrong containers list in the registry
-                    Logger.log("w", "Not adding {id} to the material manager because the variant does not exist.".format(id = material_metadata["id"]))
+                    Logger.log("w", "Not adding {id} to the material manager because the nozzle does not exist.".format(id = material_metadata["id"]))
                     self._container_registry.addWrongContainerId(material_metadata["id"])
 
         self.materialsUpdated.emit()
@@ -263,45 +290,52 @@ class MaterialManager(QObject):
     #
     # Return a dict with all root material IDs (k) and ContainerNodes (v) that's suitable for the given setup.
     #
-    def getAvailableMaterials(self, machine_definition: "DefinitionContainer", extruder_variant_name: Optional[str],
-                              diameter: float) -> Dict[str, MaterialNode]:
+    def getAvailableMaterials(self, machine_definition: "DefinitionContainer", extruder_nozzle_name: Optional[str],
+                              buildplate_name: Optional[str], diameter: float) -> Dict[str, MaterialNode]:
         # round the diameter to get the approximate diameter
         rounded_diameter = str(round(diameter))
-        if rounded_diameter not in self._diameter_machine_variant_material_map:
+        if rounded_diameter not in self._diameter_machine_nozzle_buildplate_material_map:
             Logger.log("i", "Cannot find materials with diameter [%s] (rounded to [%s])", diameter, rounded_diameter)
             return dict()
 
         machine_definition_id = machine_definition.getId()
 
-        # If there are variant materials, get the variant material
-        machine_variant_material_map = self._diameter_machine_variant_material_map[rounded_diameter]
-        machine_node = machine_variant_material_map.get(machine_definition_id)
-        default_machine_node = machine_variant_material_map.get(self._default_machine_definition_id)
-        variant_node = None
-        if extruder_variant_name is not None and machine_node is not None:
-            variant_node = machine_node.getChildNode(extruder_variant_name)
+        # If there are nozzle-and-or-buildplate materials, get the nozzle-and-or-buildplate material
+        machine_nozzle_buildplate_material_map = self._diameter_machine_nozzle_buildplate_material_map[rounded_diameter]
+        machine_node = machine_nozzle_buildplate_material_map.get(machine_definition_id)
+        default_machine_node = machine_nozzle_buildplate_material_map.get(self._default_machine_definition_id)
+        nozzle_node = None
+        buildplate_node = None
+        if extruder_nozzle_name is not None and machine_node is not None:
+            nozzle_node = machine_node.getChildNode(extruder_nozzle_name)
+            # Get buildplate node if possible
+            if nozzle_node is not None and buildplate_name is not None:
+                buildplate_node = nozzle_node.getChildNode(buildplate_name)
 
-        nodes_to_check = [variant_node, machine_node, default_machine_node]
+        nodes_to_check = [buildplate_node, nozzle_node, machine_node, default_machine_node]
 
         # Fallback mechanism of finding materials:
-        #  1. variant-specific material
-        #  2. machine-specific material
-        #  3. generic material (for fdmprinter)
+        #  1. buildplate-specific material
+        #  2. nozzle-specific material
+        #  3. machine-specific material
+        #  4. generic material (for fdmprinter)
         machine_exclude_materials = machine_definition.getMetaDataEntry("exclude_materials", [])
 
-        material_id_metadata_dict = dict() # type: Dict[str, MaterialNode]
-        for node in nodes_to_check:
-            if node is not None:
-                # Only exclude the materials that are explicitly specified in the "exclude_materials" field.
-                # Do not exclude other materials that are of the same type.
-                for material_id, node in node.material_map.items():
-                    if material_id in machine_exclude_materials:
-                        Logger.log("d", "Exclude material [%s] for machine [%s]",
-                                   material_id, machine_definition.getId())
-                        continue
+        material_id_metadata_dict = dict()  # type: Dict[str, MaterialNode]
+        for current_node in nodes_to_check:
+            if current_node is None:
+                continue
 
-                    if material_id not in material_id_metadata_dict:
-                        material_id_metadata_dict[material_id] = node
+            # Only exclude the materials that are explicitly specified in the "exclude_materials" field.
+            # Do not exclude other materials that are of the same type.
+            for material_id, node in current_node.material_map.items():
+                if material_id in machine_exclude_materials:
+                    Logger.log("d", "Exclude material [%s] for machine [%s]",
+                               material_id, machine_definition.getId())
+                    continue
+
+                if material_id not in material_id_metadata_dict:
+                    material_id_metadata_dict[material_id] = node
 
         return material_id_metadata_dict
 
@@ -310,13 +344,14 @@ class MaterialManager(QObject):
     #
     def getAvailableMaterialsForMachineExtruder(self, machine: "GlobalStack",
                                                 extruder_stack: "ExtruderStack") -> Optional[dict]:
-        variant_name = None
+        buildplate_name = machine.getBuildplateName()
+        nozzle_name = None
         if extruder_stack.variant.getId() != "empty_variant":
-            variant_name = extruder_stack.variant.getName()
+            nozzle_name = extruder_stack.variant.getName()
         diameter = extruder_stack.approximateMaterialDiameter
 
         # Fetch the available materials (ContainerNode) for the current active machine and extruder setup.
-        return self.getAvailableMaterials(machine.definition, variant_name, diameter)
+        return self.getAvailableMaterials(machine.definition, nozzle_name, buildplate_name, diameter)
 
     #
     # Gets MaterialNode for the given extruder and machine with the given material name.
@@ -324,32 +359,36 @@ class MaterialManager(QObject):
     #  1. the given machine doesn't have materials;
     #  2. cannot find any material InstanceContainers with the given settings.
     #
-    def getMaterialNode(self, machine_definition_id: str, extruder_variant_name: Optional[str],
-                        diameter: float, root_material_id: str) -> Optional["InstanceContainer"]:
+    def getMaterialNode(self, machine_definition_id: str, nozzle_name: Optional[str],
+                        buildplate_name: Optional[str], diameter: float, root_material_id: str) -> Optional["InstanceContainer"]:
         # round the diameter to get the approximate diameter
         rounded_diameter = str(round(diameter))
-        if rounded_diameter not in self._diameter_machine_variant_material_map:
+        if rounded_diameter not in self._diameter_machine_nozzle_buildplate_material_map:
             Logger.log("i", "Cannot find materials with diameter [%s] (rounded to [%s]) for root material id [%s]",
                        diameter, rounded_diameter, root_material_id)
             return None
 
-        # If there are variant materials, get the variant material
-        machine_variant_material_map = self._diameter_machine_variant_material_map[rounded_diameter]
-        machine_node = machine_variant_material_map.get(machine_definition_id)
-        variant_node = None
+        # If there are nozzle materials, get the nozzle-specific material
+        machine_nozzle_buildplate_material_map = self._diameter_machine_nozzle_buildplate_material_map[rounded_diameter]
+        machine_node = machine_nozzle_buildplate_material_map.get(machine_definition_id)
+        nozzle_node = None
+        buildplate_node = None
 
         # Fallback for "fdmprinter" if the machine-specific materials cannot be found
         if machine_node is None:
-            machine_node = machine_variant_material_map.get(self._default_machine_definition_id)
-        if machine_node is not None and extruder_variant_name is not None:
-            variant_node = machine_node.getChildNode(extruder_variant_name)
+            machine_node = machine_nozzle_buildplate_material_map.get(self._default_machine_definition_id)
+        if machine_node is not None and nozzle_name is not None:
+            nozzle_node = machine_node.getChildNode(nozzle_name)
+        if nozzle_node is not None and buildplate_name is not None:
+            buildplate_node = nozzle_node.getChildNode(buildplate_name)
 
         # Fallback mechanism of finding materials:
-        #  1. variant-specific material
-        #  2. machine-specific material
-        #  3. generic material (for fdmprinter)
-        nodes_to_check = [variant_node, machine_node,
-                          machine_variant_material_map.get(self._default_machine_definition_id)]
+        #  1. buildplate-specific material
+        #  2. nozzle-specific material
+        #  3. machine-specific material
+        #  4. generic material (for fdmprinter)
+        nodes_to_check = [buildplate_node, nozzle_node, machine_node,
+                          machine_nozzle_buildplate_material_map.get(self._default_machine_definition_id)]
 
         material_node = None
         for node in nodes_to_check:
@@ -366,7 +405,8 @@ class MaterialManager(QObject):
     #  1. the given machine doesn't have materials;
     #  2. cannot find any material InstanceContainers with the given settings.
     #
-    def getMaterialNodeByType(self, global_stack: "GlobalStack", position: str, extruder_variant_name: str, material_guid: str) -> Optional["MaterialNode"]:
+    def getMaterialNodeByType(self, global_stack: "GlobalStack", position: str, nozzle_name: str,
+                              buildplate_name: Optional[str], material_guid: str) -> Optional["MaterialNode"]:
         node = None
         machine_definition = global_stack.definition
         extruder_definition = global_stack.extruders[position].definition
@@ -385,7 +425,7 @@ class MaterialManager(QObject):
                 Logger.log("i", "Cannot find materials with guid [%s] ", material_guid)
                 return None
 
-            node = self.getMaterialNode(machine_definition.getId(), extruder_variant_name,
+            node = self.getMaterialNode(machine_definition.getId(), nozzle_name, buildplate_name,
                                         material_diameter, root_material_id)
         return node
 
@@ -413,13 +453,17 @@ class MaterialManager(QObject):
         else:
             return None
 
-    ##  Get default material for given global stack, extruder position and extruder variant name
+    ##  Get default material for given global stack, extruder position and extruder nozzle name
     #   you can provide the extruder_definition and then the position is ignored (useful when building up global stack in CuraStackBuilder)
-    def getDefaultMaterial(self, global_stack: "GlobalStack", position: str, extruder_variant_name: Optional[str], extruder_definition: Optional["DefinitionContainer"] = None) -> Optional["MaterialNode"]:
+    def getDefaultMaterial(self, global_stack: "GlobalStack", position: str, nozzle_name: Optional[str],
+                           extruder_definition: Optional["DefinitionContainer"] = None) -> Optional["MaterialNode"]:
         node = None
+
+        buildplate_name = global_stack.getBuildplateName()
         machine_definition = global_stack.definition
         if extruder_definition is None:
             extruder_definition = global_stack.extruders[position].definition
+
         if extruder_definition and parseBool(global_stack.getMetaDataEntry("has_materials", False)):
             # At this point the extruder_definition is not None
             material_diameter = extruder_definition.getProperty("material_diameter", "value")
@@ -428,7 +472,7 @@ class MaterialManager(QObject):
             approximate_material_diameter = str(round(material_diameter))
             root_material_id = machine_definition.getMetaDataEntry("preferred_material")
             root_material_id = self.getRootMaterialIDForDiameter(root_material_id, approximate_material_diameter)
-            node = self.getMaterialNode(machine_definition.getId(), extruder_variant_name,
+            node = self.getMaterialNode(machine_definition.getId(), nozzle_name, buildplate_name,
                                         material_diameter, root_material_id)
         return node
 
@@ -515,8 +559,8 @@ class MaterialManager(QObject):
             if container_to_copy.getMetaDataEntry("definition") != "fdmprinter":
                 new_id += "_" + container_to_copy.getMetaDataEntry("definition")
                 if container_to_copy.getMetaDataEntry("variant_name"):
-                    variant_name = container_to_copy.getMetaDataEntry("variant_name")
-                    new_id += "_" + variant_name.replace(" ", "_")
+                    nozzle_name = container_to_copy.getMetaDataEntry("variant_name")
+                    new_id += "_" + nozzle_name.replace(" ", "_")
 
             new_container = copy.deepcopy(container_to_copy)
             new_container.getMetaData()["id"] = new_id

cura/Machines/QualityManager.py

@@ -45,7 +45,7 @@ class QualityManager(QObject):
         self._empty_quality_container = self._application.empty_quality_container
         self._empty_quality_changes_container = self._application.empty_quality_changes_container
 
-        self._machine_variant_material_quality_type_to_quality_dict = {}  # for quality lookup
+        self._machine_nozzle_buildplate_material_quality_type_to_quality_dict = {}  # for quality lookup
         self._machine_quality_type_to_quality_changes_dict = {}  # for quality_changes lookup
 
         self._default_machine_definition_id = "fdmprinter"
@@ -64,10 +64,10 @@ class QualityManager(QObject):
 
     def initialize(self):
         # Initialize the lookup tree for quality profiles with following structure:
-        # <machine> -> <variant> -> <material>
-        #           -> <material>
+        # <machine> -> <nozzle> -> <buildplate> -> <material>
+        # <machine> -> <material>
 
-        self._machine_variant_material_quality_type_to_quality_dict = {}  # for quality lookup
+        self._machine_nozzle_buildplate_material_quality_type_to_quality_dict = {}  # for quality lookup
         self._machine_quality_type_to_quality_changes_dict = {}  # for quality_changes lookup
 
         quality_metadata_list = self._container_registry.findContainersMetadata(type = "quality")
@@ -79,47 +79,58 @@ class QualityManager(QObject):
             quality_type = metadata["quality_type"]
 
             root_material_id = metadata.get("material")
-            variant_name = metadata.get("variant")
+            nozzle_name = metadata.get("variant")
+            buildplate_name = metadata.get("buildplate")
             is_global_quality = metadata.get("global_quality", False)
-            is_global_quality = is_global_quality or (root_material_id is None and variant_name is None)
+            is_global_quality = is_global_quality or (root_material_id is None and nozzle_name is None and buildplate_name is None)
 
             # Sanity check: material+variant and is_global_quality cannot be present at the same time
-            if is_global_quality and (root_material_id or variant_name):
+            if is_global_quality and (root_material_id or nozzle_name):
                 ConfigurationErrorMessage.getInstance().addFaultyContainers(metadata["id"])
                 continue
 
-            if definition_id not in self._machine_variant_material_quality_type_to_quality_dict:
-                self._machine_variant_material_quality_type_to_quality_dict[definition_id] = QualityNode()
-            machine_node = cast(QualityNode, self._machine_variant_material_quality_type_to_quality_dict[definition_id])
+            if definition_id not in self._machine_nozzle_buildplate_material_quality_type_to_quality_dict:
+                self._machine_nozzle_buildplate_material_quality_type_to_quality_dict[definition_id] = QualityNode()
+            machine_node = cast(QualityNode, self._machine_nozzle_buildplate_material_quality_type_to_quality_dict[definition_id])
 
             if is_global_quality:
                 # For global qualities, save data in the machine node
                 machine_node.addQualityMetadata(quality_type, metadata)
                 continue
 
-            if variant_name is not None:
-                # If variant_name is specified in the quality/quality_changes profile, check if material is specified,
-                # too.
-                if variant_name not in machine_node.children_map:
-                    machine_node.children_map[variant_name] = QualityNode()
-                variant_node = cast(QualityNode, machine_node.children_map[variant_name])
+            # Check if nozzle si specified
+            if nozzle_name is not None:
+                if nozzle_name not in machine_node.children_map:
+                    machine_node.children_map[nozzle_name] = QualityNode()
+                nozzle_node = cast(QualityNode, machine_node.children_map[nozzle_name])
+
+                # Check if buildplate is specified
+                if buildplate_name is not None:
+                    if buildplate_name not in nozzle_node.children_map:
+                        nozzle_node.children_map[buildplate_name] = QualityNode()
+                    buildplate_node = cast(QualityNode, nozzle_node.children_map[buildplate_name])
+
+                    if root_material_id is None:
+                        buildplate_node.addQualityMetadata(quality_type, metadata)
+                    else:
+                        if root_material_id not in buildplate_node.children_map:
+                            buildplate_node.children_map[root_material_id] = QualityNode()
+                        material_node = cast(QualityNode, buildplate_node.children_map[root_material_id])
+
+                        material_node.addQualityMetadata(quality_type, metadata)
 
-                if root_material_id is None:
-                    # If only variant_name is specified but material is not, add the quality/quality_changes metadata
-                    # into the current variant node.
-                    variant_node.addQualityMetadata(quality_type, metadata)
                 else:
-                    # If only variant_name and material are both specified, go one level deeper: create a material node
-                    # under the current variant node, and then add the quality/quality_changes metadata into the
-                    # material node.
-                    if root_material_id not in variant_node.children_map:
-                        variant_node.children_map[root_material_id] = QualityNode()
-                    material_node = cast(QualityNode, variant_node.children_map[root_material_id])
+                    if root_material_id is None:
+                        nozzle_node.addQualityMetadata(quality_type, metadata)
+                    else:
+                        if root_material_id not in nozzle_node.children_map:
+                            nozzle_node.children_map[root_material_id] = QualityNode()
+                        material_node = cast(QualityNode, nozzle_node.children_map[root_material_id])
 
-                    material_node.addQualityMetadata(quality_type, metadata)
+                        material_node.addQualityMetadata(quality_type, metadata)
 
             else:
-                # If variant_name is not specified, check if material is specified.
+                # If nozzle is not specified, check if material is specified.
                 if root_material_id is not None:
                     if root_material_id not in machine_node.children_map:
                         machine_node.children_map[root_material_id] = QualityNode()
@@ -217,8 +228,8 @@ class QualityManager(QObject):
         # To find the quality container for the GlobalStack, check in the following fall-back manner:
         #   (1) the machine-specific node
         #   (2) the generic node
-        machine_node = self._machine_variant_material_quality_type_to_quality_dict.get(machine_definition_id)
-        default_machine_node = self._machine_variant_material_quality_type_to_quality_dict.get(self._default_machine_definition_id)
+        machine_node = self._machine_nozzle_buildplate_material_quality_type_to_quality_dict.get(machine_definition_id)
+        default_machine_node = self._machine_nozzle_buildplate_material_quality_type_to_quality_dict.get(self._default_machine_definition_id)
         nodes_to_check = [machine_node, default_machine_node]
 
         # Iterate over all quality_types in the machine node
@@ -238,11 +249,13 @@ class QualityManager(QObject):
                     quality_group_dict[quality_type] = quality_group
                 break
 
+        buildplate_name = machine.getBuildplateName()
+
         # Iterate over all extruders to find quality containers for each extruder
         for position, extruder in machine.extruders.items():
-            variant_name = None
+            nozzle_name = None
             if extruder.variant.getId() != "empty_variant":
-                variant_name = extruder.variant.getName()
+                nozzle_name = extruder.variant.getName()
 
             # This is a list of root material IDs to use for searching for suitable quality profiles.
             # The root material IDs in this list are in prioritized order.
@@ -258,34 +271,47 @@ class QualityManager(QObject):
                 # Also try to get the fallback material
                 material_type = extruder.material.getMetaDataEntry("material")
                 fallback_root_material_id = self._material_manager.getFallbackMaterialIdByMaterialType(material_type)
-                if fallback_root_material_id:
+                if fallback_root_material_id and root_material_id not in root_material_id_list:
                     root_material_id_list.append(fallback_root_material_id)
 
             # Here we construct a list of nodes we want to look for qualities with the highest priority first.
             # The use case is that, when we look for qualities for a machine, we first want to search in the following
             # order:
-            #   1. machine-variant-and-material-specific qualities if exist
-            #   2. machine-variant-specific qualities if exist
-            #   3. machine-material-specific qualities if exist
-            #   4. machine-specific qualities if exist
-            #   5. generic qualities if exist
+            #   1. machine-nozzle-buildplate-and-material-specific qualities if exist
+            #   2. machine-nozzle-and-material-specific qualities if exist
+            #   3. machine-nozzle-specific qualities if exist
+            #   4. machine-material-specific qualities if exist
+            #   5. machine-specific qualities if exist
+            #   6. generic qualities if exist
             # Each points above can be represented as a node in the lookup tree, so here we simply put those nodes into
             # the list with priorities as the order. Later, we just need to loop over each node in this list and fetch
             # qualities from there.
             nodes_to_check = []
 
-            if variant_name:
-                # In this case, we have both a specific variant and a specific material
-                variant_node = machine_node.getChildNode(variant_name)
-                if variant_node and has_material:
+            if nozzle_name:
+                # In this case, we have both a specific nozzle and a specific material
+                nozzle_node = machine_node.getChildNode(nozzle_name)
+                if nozzle_node and has_material:
+                    # Check build plate if exists
+                    if buildplate_name:
+                        buildplate_node = nozzle_node.getChildNode(buildplate_name)
+                        if buildplate_node and has_material:
+                            for root_material_id in root_material_id_list:
+                                material_node = buildplate_node.getChildNode(root_material_id)
+                                if material_node:
+                                    nodes_to_check.append(material_node)
+                                    break
+                        nodes_to_check.append(buildplate_node)
+
+                    # Then add nozzle specific materials
                     for root_material_id in root_material_id_list:
-                        material_node = variant_node.getChildNode(root_material_id)
+                        material_node = nozzle_node.getChildNode(root_material_id)
                         if material_node:
                             nodes_to_check.append(material_node)
                             break
-                nodes_to_check.append(variant_node)
+                nodes_to_check.append(nozzle_node)
 
-            # In this case, we only have a specific material but NOT a variant
+            # In this case, we only have a specific material but NOT a nozzle
             if has_material:
                 for root_material_id in root_material_id_list:
                     material_node = machine_node.getChildNode(root_material_id)
@@ -309,8 +335,9 @@ class QualityManager(QObject):
                             quality_group_dict[quality_type] = quality_group
 
                         quality_group = quality_group_dict[quality_type]
-                        quality_group.nodes_for_extruders[position] = quality_node
-                    break
+                        if position not in quality_group.nodes_for_extruders:
+                            quality_group.nodes_for_extruders[position] = quality_node
+                    #break
 
         # Update availabilities for each quality group
         self._updateQualityGroupsAvailability(machine, quality_group_dict.values())
@@ -323,8 +350,8 @@ class QualityManager(QObject):
         # To find the quality container for the GlobalStack, check in the following fall-back manner:
         #   (1) the machine-specific node
         #   (2) the generic node
-        machine_node = self._machine_variant_material_quality_type_to_quality_dict.get(machine_definition_id)
-        default_machine_node = self._machine_variant_material_quality_type_to_quality_dict.get(
+        machine_node = self._machine_nozzle_buildplate_material_quality_type_to_quality_dict.get(machine_definition_id)
+        default_machine_node = self._machine_nozzle_buildplate_material_quality_type_to_quality_dict.get(
             self._default_machine_definition_id)
         nodes_to_check = [machine_node, default_machine_node]