Just finished my writeup for my 3D printed ironless QDD actuator. It can hold 30Nm of torque, has no backlash, and has a BOM cost <$75. It's also fully open source.
Check it out on my website below!
cadenkraft.com/ironless-cyc...
cadenkraft.com
Ironless Rotor Cycloidal Planetary Actuator
In my last SCARA arm project, I had a very frustrating experience designing high torque/high accuracy gearboxes for the Nema 23 stepper motors I used. Ideally for that project I could have used fancy ...