Quantity   Component name
1 × a planetary gearbox stepper motor with a 100:1 gear ratio https://www.omc-stepperonline.com/precision-planetary-gearbox/nema-17-stepper-motor-l39mm-gear-raio-1001-high-precision-planetary-gearbox-17hs15-1684s-hg100.html?mfp=287-gear-ratio%5B100%5D
1 × a large bearing
1 × a hexagonal piece
1 × a 12 mm steel drive shaft extension
1 × a rigid flange coupling motor guide
1 × 3d printed pieces
1 × a few circuits based around the Trinamic Motor Control TMC2041 IC
1 × a motion sensor
1 × through hole slip rings