- A Banana almost useless 337mm 8mm Shaft. (You could use 2 of half the size), you could even redesign the shaft holder and use a PVC tube. - Some glue just in case - x2 Ultimaker bearings (the ones that uses to hold the 8mm shaft/rods or the ones inside the umo+ feeder. - Probably a new feeder or a feeder rotated.