posted by [personal profile] whc at 11:21am on 2015-10-27
True industrial step motors would have the endurance and I'd think one from a printer or drive would be worth a try.
A hard drive spin motor is certainly rated for continuous operation, but would need to be geared down a lot, I was thinking about the step motors used for head positioning on CD drives and some floppies.

I have an extra step motor driver board (they're cheap these days) that would just need a digital signal at the correct frequency. You can have it if you decide to go the step motor route. I can build up a circuit with a 555 IC to drive it. I may even have a step motor that I don't need.
 
posted by [personal profile] whc at 02:38am on 2015-12-16
I found a step motor from an old printer and should be able to build you a drive circuit. What RPM would you like?

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