diff --git a/cura/PrinterOutputDevice.py b/cura/PrinterOutputDevice.py
index 91eba34631..1eff1b945a 100644
--- a/cura/PrinterOutputDevice.py
+++ b/cura/PrinterOutputDevice.py
@@ -203,6 +203,22 @@ class PrinterOutputDevice(OutputDevice, QObject):
     def setHeadZ(self, z, speed = 3000):
         self._setHeadY(z, speed)
 
+    ##  Move the head of the printer.
+    #   Note that this is a relative move. If you want to move the head to a specific position you can use
+    #   setHeadPosition
+    #   This function is "final" (do not re-implement)
+    #   /param x distance in x to move
+    #   /param y distance in y to move
+    #   /param z distance in z to move
+    #   /param speed Speed by which it needs to move (in mm/minute)
+    @pyqtSlot("long", "long", "long")
+    @pyqtSlot("long", "long", "long", "long")
+    def moveHead(self, x = 0, y = 0, z = 0, speed = 3000):
+        self._moveHead(x, y, z, speed)
+
+    def _moveHead(self, x, y, z, speed):
+        pass
+
     def _setHeadPosition(self, x, y, z, speed):
         pass
 
diff --git a/plugins/USBPrinting/USBPrinterOutputDevice.py b/plugins/USBPrinting/USBPrinterOutputDevice.py
index 5536d6c74b..8262aaf3c4 100644
--- a/plugins/USBPrinting/USBPrinterOutputDevice.py
+++ b/plugins/USBPrinting/USBPrinterOutputDevice.py
@@ -69,9 +69,6 @@ class USBPrinterOutputDevice(PrinterOutputDevice):
         # List of gcode lines to be printed
         self._gcode = []
 
-        # Current Z stage location 
-        self._current_z = 0
-
         # Check if endstops are ever pressed (used for first run)
         self._x_min_endstop_pressed = False
         self._y_min_endstop_pressed = False