Small 3D Printable Motor

View on GitHub

A few months ago, I came across a post about someone wanting to build a Discord server for the HomeBrew Robotics network. The idea is close to that of the Homebrew Computing Club, intending to aid in the democratization of robots.

One of the missions of the group is to help develop a class architecture that will allow people to learn about how robots are developed today. This will include learning about bare motors, motor control, frame design, trajectory planning, and movement policies.

During the semester, I wanted to contribute a little, so I reached out to William (one of the heads), and asked how I could contribute. He recommended this video from HomeMade Projects, so I began working on using the STL files from there for a similar motor. Unfortunately, he only linked the STL files and I had slightly different parts.

The magnets I had were 1 mm thicker than the ones used in the video and I also wanted to get thicker inserts. As a result, I decided that I would just redesign the motor.

I used the same basic configurations: 12 slots, 8 poles, in a Wye configuration.

My lab uses fusion, so that is also what I used (trying to use more OnShape and Solidworks now). But the files are hosted here on github.

I didn't get a video of it spinning and now someone else has it, so I am waiting to get that. When/if I do, I'll upload it here.

There may be more development here. We are still figuring out exactly what our motors look like, but for now this is it. I also was working on the FOC PCB board for my 2.679 class. That should be getting its own project description page in the future, but is here for now