My mill spindle motor is a smaller one. What I want to do is add some feedback to it, so that it would stay at the speed I set, and not bog down the motor by slowing, or having to run it at too fast a speed so I melt whatever I'm machining.
Do I need to use both phase-A and the index pulse to read the rpm and control the motor? Would that give me the best results? I'm just looking for some insight from someone who has done something like this before.
I've seen a few examples that use analog voltage to control the motor. I can control this motor directly with pwm or pdm, right from the printer port. Also I don't recall any of them using PID.
I could very well just be confusing myself. Maybe it would work better to heat up the soldering iron and make something, but that seems rather inelegant.
Regards,
Bill K.