Thread: CHEAP or EASY String Pots (source, or fabbed)
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Unread 16-12-2008, 18:38
EricVanWyk EricVanWyk is offline
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Re: CHEAP or EASY String Pots (source, or fabbed)
Quote:
Originally Posted by kmcclary View Post

Now a non-FIRST friend offered the pretty cool idea of coupling a cheap motor's shaft onto the pot end from a facing motor, and driving it with a tiny current limited supply. This makes it a "virtual spring". (In essence, stall the motor, but with a small enough current that it won't fry...) Now THAT was interesting!
Very cool idea. Current mode control (rather than voltage mode) has a lot of neat applications.