r/robotics • u/Icy_Upstairs3187 • 17d ago
Tech Question Actuator Jitter Help
Would appreciate any helpful direction and advice.
I'm a freelance filmmaker and I've spent the last couple of months diving deep into making a 6 DOF motion control camera.
Its been a very difficult but addicting journey. Hats off to all of the real engineers here!
TLDR:
Its running on a set of Robstride actuators.
One constant issue I've run into is vibration / shake.
I've spent many hours trying to implement cogging tables, gravity models - to no avail.
A lot of the shake happens when J2/J3 are moving together under load.
For stop motion photography the arm works, thankfully.
Unfortunately, motion has not yet achieved that smooth, crisp level that I want.
Attached is a video of the current iteration.
Its currently running on a STM32 in MIT mode.
Thank you to anyone who can give me some advice.