diff --git a/plugins/CuraEngineBackend/StartSliceJob.py b/plugins/CuraEngineBackend/StartSliceJob.py
index b262080872..4588982bf2 100644
--- a/plugins/CuraEngineBackend/StartSliceJob.py
+++ b/plugins/CuraEngineBackend/StartSliceJob.py
@@ -215,7 +215,7 @@ class StartSliceJob(Job):
 
         for key in stack.getAllKeys():
             # Do not send settings that are not settable_per_extruder.
-            if stack.getProperty(key, "settable_per_extruder") == False:
+            if not stack.getProperty(key, "settable_per_extruder"):
                 continue
             setting = message.getMessage("settings").addRepeatedMessage("settings")
             setting.name = key
diff --git a/resources/definitions/fdmextruder.def.json b/resources/definitions/fdmextruder.def.json
index be006dfe59..bf235d76eb 100644
--- a/resources/definitions/fdmextruder.def.json
+++ b/resources/definitions/fdmextruder.def.json
@@ -30,6 +30,15 @@
                     "settable_per_meshgroup": false,
                     "settable_globally": false
                 },
+                "machine_nozzle_id":
+                {
+                    "label": "Nozzle ID",
+                    "description": "The nozzle ID for an extruder train, such as \"AA 0.4\" and \"BB 0.8\".",
+                    "type": "str",
+                    "default_value": "unknown",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
+                },
                 "machine_nozzle_size":
                 {
                     "label": "Nozzle Diameter",
diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 46505b8152..40f224a98a 100755
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -407,6 +407,15 @@
                     "settable_per_extruder": false,
                     "settable_per_meshgroup": false
                 },
+                "machine_nozzle_id":
+                {
+                    "label": "Nozzle ID",
+                    "description": "The nozzle ID for an extruder train, such as \"AA 0.4\" and \"BB 0.8\".",
+                    "type": "str",
+                    "default_value": "unknown",
+                    "settable_per_mesh": false,
+                    "settable_per_extruder": true
+                },
                 "machine_nozzle_size":
                 {
                     "label": "Nozzle Diameter",
diff --git a/resources/variants/ultimaker3_aa0.8.inst.cfg b/resources/variants/ultimaker3_aa0.8.inst.cfg
index e94177abc3..41d6191883 100644
--- a/resources/variants/ultimaker3_aa0.8.inst.cfg
+++ b/resources/variants/ultimaker3_aa0.8.inst.cfg
@@ -31,6 +31,7 @@ line_width = =machine_nozzle_size
 machine_min_cool_heat_time_window = 15
 machine_nozzle_cool_down_speed = 0.85
 machine_nozzle_heat_up_speed = 1.5
+machine_nozzle_id = AA 0.8
 machine_nozzle_size = 0.8
 machine_nozzle_tip_outer_diameter = 2.0
 material_final_print_temperature = =material_print_temperature - 10
diff --git a/resources/variants/ultimaker3_aa04.inst.cfg b/resources/variants/ultimaker3_aa04.inst.cfg
index 4cf31caef0..ff380197ea 100644
--- a/resources/variants/ultimaker3_aa04.inst.cfg
+++ b/resources/variants/ultimaker3_aa04.inst.cfg
@@ -11,6 +11,7 @@ setting_version = 1
 [values]
 brim_width = 7
 machine_nozzle_cool_down_speed = 0.9
+machine_nozzle_id = AA 0.4
 raft_acceleration = =acceleration_print
 raft_airgap = 0.3
 raft_base_thickness = =resolveOrValue('layer_height_0') * 1.2
diff --git a/resources/variants/ultimaker3_bb0.8.inst.cfg b/resources/variants/ultimaker3_bb0.8.inst.cfg
index aa2042b271..c9a8c5a945 100644
--- a/resources/variants/ultimaker3_bb0.8.inst.cfg
+++ b/resources/variants/ultimaker3_bb0.8.inst.cfg
@@ -29,6 +29,7 @@ jerk_support_bottom = =math.ceil(jerk_support_interface * 1 / 10)
 layer_height = 0.2
 machine_min_cool_heat_time_window = 15
 machine_nozzle_heat_up_speed = 1.5
+machine_nozzle_id = BB 0.8
 machine_nozzle_size = 0.8
 machine_nozzle_tip_outer_diameter = 2.0
 material_print_temperature = =default_material_print_temperature + 10
diff --git a/resources/variants/ultimaker3_bb04.inst.cfg b/resources/variants/ultimaker3_bb04.inst.cfg
index f379a8d1e2..5a4b39f68a 100644
--- a/resources/variants/ultimaker3_bb04.inst.cfg
+++ b/resources/variants/ultimaker3_bb04.inst.cfg
@@ -17,6 +17,7 @@ jerk_support = =math.ceil(jerk_print * 15 / 25)
 jerk_support_interface = =math.ceil(jerk_support * 10 / 15)
 jerk_support_bottom = =math.ceil(jerk_support_interface * 1 / 10)
 machine_nozzle_heat_up_speed = 1.5
+machine_nozzle_id = BB 0.4
 material_print_temperature = 215
 raft_base_speed = 20
 raft_interface_speed = 20
diff --git a/resources/variants/ultimaker3_extended_aa0.8.inst.cfg b/resources/variants/ultimaker3_extended_aa0.8.inst.cfg
index 47b0359df7..c2ecbcdf49 100644
--- a/resources/variants/ultimaker3_extended_aa0.8.inst.cfg
+++ b/resources/variants/ultimaker3_extended_aa0.8.inst.cfg
@@ -31,6 +31,7 @@ line_width = =machine_nozzle_size
 machine_min_cool_heat_time_window = 15
 machine_nozzle_cool_down_speed = 0.85
 machine_nozzle_heat_up_speed = 1.5
+machine_nozzle_id = AA 0.8
 machine_nozzle_size = 0.8
 machine_nozzle_tip_outer_diameter = 2.0
 material_final_print_temperature = =material_print_temperature - 10
diff --git a/resources/variants/ultimaker3_extended_aa04.inst.cfg b/resources/variants/ultimaker3_extended_aa04.inst.cfg
index 99daa082e4..f66be12d49 100644
--- a/resources/variants/ultimaker3_extended_aa04.inst.cfg
+++ b/resources/variants/ultimaker3_extended_aa04.inst.cfg
@@ -11,6 +11,7 @@ setting_version = 1
 [values]
 brim_width = 7
 machine_nozzle_cool_down_speed = 0.9
+machine_nozzle_id = AA 0.4
 machine_nozzle_size = 0.4
 raft_airgap = 0.3
 raft_base_speed = 15
diff --git a/resources/variants/ultimaker3_extended_bb0.8.inst.cfg b/resources/variants/ultimaker3_extended_bb0.8.inst.cfg
index c982d207b0..8a4dcfee09 100644
--- a/resources/variants/ultimaker3_extended_bb0.8.inst.cfg
+++ b/resources/variants/ultimaker3_extended_bb0.8.inst.cfg
@@ -29,6 +29,7 @@ jerk_support_bottom = =math.ceil(jerk_support_interface * 1 / 10)
 layer_height = 0.2
 machine_min_cool_heat_time_window = 15
 machine_nozzle_heat_up_speed = 1.5
+machine_nozzle_id = BB 0.8
 machine_nozzle_size = 0.8
 machine_nozzle_tip_outer_diameter = 2.0
 material_print_temperature = =default_material_print_temperature + 10
diff --git a/resources/variants/ultimaker3_extended_bb04.inst.cfg b/resources/variants/ultimaker3_extended_bb04.inst.cfg
index abeaf69db2..e35ab82d9f 100644
--- a/resources/variants/ultimaker3_extended_bb04.inst.cfg
+++ b/resources/variants/ultimaker3_extended_bb04.inst.cfg
@@ -17,6 +17,7 @@ jerk_support = =math.ceil(jerk_print * 15 / 25)
 jerk_support_interface = =math.ceil(jerk_support * 10 / 15)
 jerk_support_bottom = =math.ceil(jerk_support_interface * 1 / 10)
 machine_nozzle_heat_up_speed = 1.5
+machine_nozzle_id = BB 0.4
 material_print_temperature = 215
 raft_base_speed = 20
 raft_interface_speed = 20