On the contrary, the motor is excellent. Lots of torque, rpm range right where I want it and light and compact.
It's the controller. It's optimized for a sewing machine. Original control was from a foot pedal connected to a hall sensor. The voltage range is in the order of 2.4v to 4.8v. Pretty tight.
It's easy to replace that with a 5 turn pot and get good smooth transition thru its rpm range.
But, I'd like to control it with the 0 to 10v pwm signal from Mach3. That's where the fun begins. Converting one voltage range to another.
There's a thread on a similar motor here: https://www.cnczone.com/forums/gecko...ine-motor.html
I made the circuit he came up with and had moderate success. I'll probably go back to that and settle for whatever I can get.
Out of curiosity, what motor are you using that you control with that new controller?