diff --git a/cura/CuraApplication.py b/cura/CuraApplication.py
index 49fcbbf405..b8cef52d0c 100644
--- a/cura/CuraApplication.py
+++ b/cura/CuraApplication.py
@@ -327,8 +327,6 @@ class CuraApplication(QtApplication):
         qmlRegisterSingletonType(MachineManagerModel.MachineManagerModel, "Cura", 1, 0, "MachineManager",
                                  MachineManagerModel.createMachineManagerModel)
 
-        self._extruder_manager = ExtruderManager.ExtruderManager()
-
         self.setMainQml(Resources.getPath(self.ResourceTypes.QmlFiles, "Cura.qml"))
         self._qml_import_paths.append(Resources.getPath(self.ResourceTypes.QmlFiles))
         self.initializeEngine()
diff --git a/cura/ExtruderManager.py b/cura/ExtruderManager.py
index 60d452ae73..34dbfd7c0c 100644
--- a/cura/ExtruderManager.py
+++ b/cura/ExtruderManager.py
@@ -13,6 +13,9 @@ from UM.Settings.ContainerRegistry import ContainerRegistry #Finding containers
 #   and makes sure that whenever the machine is swapped, this list is kept up to
 #   date. It also contains and updates the setting stacks for the extruders.
 class ExtruderManager:
+    ##  The singleton instance of this manager.
+    __instance = None
+
     ##  Registers listeners and such to listen to changes to the extruders.
     def __init__(self):
         self._extruders = [] #Extruders for the current machine.
@@ -20,6 +23,16 @@ class ExtruderManager:
 
         Application.getInstance().globalContainerStackChanged.connect(self._reconnectExtruderReload) #When the current machine changes, we need to reload all extruders belonging to the new machine.
 
+    ##  Gets an instance of this extruder manager.
+    #
+    #   If an instance was already created, the old instance is returned. This
+    #   implements the singleton pattern.
+    @classmethod
+    def getInstance(cls):
+        if not cls.__instance:
+            cls.__instance = ExtruderManager()
+        return cls.__instance
+
     ##  When the global container stack changes, this reconnects to the new
     #   signal for containers changing.
     def _reconnectExtruderReload(self):