Quote Originally Posted by Voicecoil View Post
It wasn't the Clearpath units I was meaning, but they are another shade of grey - and likely easier to use than a classic servo from what I've just read. Closed loop steppers are a stepper motor with an encoder on the back which gives feedback to make sure it got to the target position - check out brands like Leadshine and Lichuan.
I think I understand. Something like this?
https://www.cnc4you.co.uk/Stepper-Mo...-Servo-Kit-4Nm

Clearpath do seem attractive as they are proper servos which should easily drop in place of a traditional stepper. One caveat seems to be that they are not well suited for use where multiple motors serve a single axis - though they do provide closed loop control, this control loop never exits the motor, so synchronising multiple motors seems impossible/difficult.