25T/5mm M1 Hardened Steel Pinion Gear 10T/5mm M1 Hardened Steel Pinion Gear Got them on hobbyking because they had dia 5mm gears, and they are very cheap. - 5mm Shaft that you can file for propper gear/extruder tightening. - 2x MF695 flanged bearings - 2x spacers from Meduza "Geared Feeder Washer: https://www.youmagine.com/designs/belt-geared-um2-feeder-upgrade - Nuts & bolts m3 (too lazy to remember the sizes since I have a box with all the the sizes available from 4mm to 30mm...