Please see the video at: https://youtu.be/xv5cd7Bg7Uk for more details
Experimenting with the cycloidal drive form to try to make a compact actuator for robot arms
These are the supplies i used: NEMA 17 stepper: https://amzn.to/3gtK3Qd Arduino Mega: https://amzn.to/3nx3Oui 5mm steel rod: https://amzn.to/3HMBGeV Thin wall bearings: https://amzn.to/3u0Whrd small bearing: https://amzn.to/3K5e9H8 eSun PLA+ filament: https://amzn.to/3HvzVT5