How to select the right linear actuator for precise motion control projects

For anything where repeatability matters, I’d look closely at the gear ratio, speed, and how consistent the stroke movement is. I had a similar issue with a wobble once, and it turned out the cheap actuator just had way too much internal play. When I switched to a better dc linear actuators unit from https://www.progressiveautomations.com/collections/linear-actuators, the difference was noticeable right away—much smoother travel and no drifting. Also, think about feedback options like potentiometers or Hall sensors if you want tighter control.