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Why do we still use stepper motors?
(sopuli.xyz)
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this post was submitted on 10 Jan 2024
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But steppers can also be servo driven if encoder is providing feedback. Right?
Im not expert, but afaik servo driven DC motor is more expensive and more complex to drive compared to stepper motor approch. I think we also need open source firmware that supports servo control (maybe it exists already Im not sure)
back in the day before BLtouch existed, my printer used a servo to deploy a bed probe. Marlin definitely can control a servo. (That was on a ramps board with no extra shields, too)
That's a big difference between deploying a probe and handing the dynamic deceleration required for a high speed gantry move.
I think you're talking about those RC servos, no?