User build
jimk's AR4 build
AR4 robot arm
- Model
- AR4
- Status
- In progress
The build, step by step
Follow the journey in CommunityChapter 1 · Jul 18, 2025
New AR4 in Troy, MI
Just wanted to share a picture of my new AR4 up and running. Been a long two weeks to get here. I'm using an ODrive for the 7th axis. Still need to 3D print an enclosure for it. /images/forum/media/216f446f42a7429f.avif
Comment on this stepChapter 2 · Oct 13, 2026
7th axis running with an ODrive
Got the 7th axis up and running, jogging back and forth just fine. I'm using an ODrive controller with a brushless motor and encoder for the 7th axis, set up in step/direction mode to connect to the Teensy. The ODrive can also be set up to automatically seek a home switch each time power is applied.
Chapter 3 · Oct 13, 2026
New AR4 up and running in Troy, MI
Just wanted to share a picture of my new AR4 up and running. Been a long two weeks to get here. I'm using an ODrive for the 7th axis. Still need to 3D print an enclosure for it.
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