andy pugh wrote: > > It has to make more sense to couple a 3-phase motor and > single-phase-input VFD directly to the spindle? > The motor is an odd frame, and also has MASSIVE torque at low speed. So, the 10EE has no back gear. It probably works MUCH better at low speed than a VFD and typical 3-phase motor. You could make an argument for a DC drive for the motor, but that could be a major project, and not a good one if you aren't an electrical engineer.
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