Quantity   Component name
3 × Nema 23 Stepper motor https://www.sparkfun.com/products/13656
1 × #25 Roller Chain Electronic Components / Misc. Electronic Componentshttps://www.surpluscenter.com/Brands/Dura-Roll/25-10-10-Box-Of-25-Roller-Chain-1-1163-25.axd
12 × 608Z Skate Bearings Bearings https://www.amazon.com/Rollerex-20-Pack-ABEC-1-Bearings-Products/dp/B07BWJ63GY/ref=asc_df_B07BWJ63GY/?tag=hyprod-20&linkCode=df0&hvadid=312035433248&hvpos=1o3&hvnetw=g&hvrand=14515072455497194254&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9018109&hvtargid=pla-568041978926&psc=1
1 × Drum Material I used a piece of copper that I had laying around to make the cable drum, could use PVC or whatever you want.
9 × #25 sprockets Sizes vary based on how you want to wrap, and your speed vrs load. https://www.surpluscenter.com/shop.axd/Search?keywords=%2325+sprockets
1 × 1/4-20 Threaded rod Need about 3'
1 × 1/2" Aluminum Round Stock - 6 ft Used for gearboz structure
1 × SLA7078 Driver Chips Used to drive the stepper motors https://www.digikey.com/product-detail/en/sanken/SLA7078MR/SLA7078MR-ND/3661827
1 × Lexan I got some surplus lexan from plastics place and used it to make the front and rear panels
1 × UHMW,Delrin, PLA, anything you want Plastic to machine to for the end caps
1 × Machine screws To hold it all together
1 × Fishing line Something that is braided and advertised as low stretch, you don't want filament.