All the bolts are M3x20, just the bolts are that i fixed the bearing blok to the spacer bolts are M3x10
Motor bolts M4
The bearings are 8mm(608zz)
Printed with PLA.
You can use any motor with that, the endstops and potantiometer will work accordingly.
I took the feedback from the 10-turn potentiometer with the arduino uno and converted it to position information. That is, we can get position data nicely, at the same time, we can program it as we want using bts7960(43a).