Today we installed the new Extrusion Upgrade Kit, we decided to use the old Feeder and install it as Dual Extrusion Now both Feeder Motors work in the wrong direction with Ultimaker-2-Ulticreatr-2X-v1-1.hex Firmware Has anybody an idea how to invert the motor direction without having to change the cables? When we create a firmware file with the custom firmware builder the printer wont run (even when we create the "stock" firmware), propably because of the expert settings (like controler, tempe