I too have been wondering about using this type of motor. Once my machine is finished I'm sure my neighbours won't be best pleased with a >2000-Watt router screaming for hours on end.
Was thinking along the lines of the homebrewed LRK motors.
Seem to have good torque for the size, not sure if RPM would be high enough tho'.
Could even be a fun CNC project. Imagine trying to cut those laminates by hand.
Anyone think something like this could be worth using?