Nema17 Differential Planetary Gear

thingiverse

UPDATE: Currently, I'm working on a new project - moving into a new apartment. As a result, all my spare time is being utilized for this task. I recently decided to attach Emmett's differential planetary gear to a NEMA 17 stepper motor. I am curious about the potential applications of this combination (stay tuned for the answer). I took Greg's x-ends code, adjusted the ratios and dimensions to create an efficient gear that can be printed and fit between the mounting holes of a NEMA 17 stepper motor. I then combined these elements. Although I haven't printed it yet, the design is in SCAD format, making it easy to modify. It's too hot at the moment, causing my air conditioner to struggle. As a result, I haven't had the chance to test this yet. NOTE: The design currently has a hex hole in the center, so if you can find a hex nut with a square-shaped indent that fits, use it. Alternatively, you can wait or come up with your own solution. Instructions: Print the parts and insert a spacer if necessary (most stepper motors have a central raised portion that needs to be cleared). Attach the gear using bolts. However, note that this setup won't drive yet as I am still designing the linkages.