YouTube Video of the second joint
Uses NEMA 17 stepper motor and 27:1 Reduction Cycloidal Gearbox
I've been working on a quadruped robot for a few years now and I'm trying to design the best possible leg actuator. Along the way I discover interesting designs, as part of the open source community, I like to share those designs. Here is my NEMA 17 (or NEMA 23) powered joint for a robot arm.
Uses NEMA 17 stepper motor and 27:1 Reduction Cycloidal Gearbox