Holder for BondTech QR 3 Universal Feeder. The set includes: 1x holder for mounting the feeder completely outside on any printer. 1x holder for mounting the feeder through a hole in the rear wall. Engine and gearbox inside, feeder outside. 1x Cover for closing existing holes for a second feeder, as it is applicable to the Ultimaker 2 for example. Use the cover so if there is currently no need for a second feeder. Additionally required: Threaded aluminum sleeves for M3 screws. M3 screws required with a minimum length of 18mm. Tips: Nozzle Size <=0.4mm It was designed for the Ultimaker 2, but it should be universally usable. Ideally the back wall has at least 6mm thickness. The holder for mounting through a hole in the device back wall can be used as a template for matching holes.