Wondering if anyone has any suggestions for putting a variable speed motor controller on my little 110V mill/drill. The belts are a bastard to adjust for different speeds... it would sure be nice to just turn a dial and still get reasonably good torque w/ a reasonable amount of speed variablility. And, I'm doing a CNC conversion soon, so this would really be a + (especially if it has an an analog input for adjusting speed).
I've seen a lot of Variable Frequency Drivess on ebay for 3ph stuff... wish I had a big mill with that kind of motor... but my mill/drill will have to do for now.
What about 110V 1ph? What kind of motor controller and who are good sources? Is this even a good idea?