Re: [CAD_CAM_EDM_DRO] Stepper speed

omikse2000 wrote:

> Have Superior Electric stepping motor type M111-FD-310. 10 volts @1.25
> amps.
> Can only get 30 RPM max. Have tried both bipolar and unipolar
> drives using voltages up to 50 vdc. Am I at it's max or can
> I try something else?

You are certainly not at the maximum for the motor, alone. Do you have
it connected to a machine? This is probably not a very powerful
motor to begin with, and at 10 V it is a high inductance motor. Since you
said you have tried both Bi- and unipolar, it must be a 6 or 8 wire
motor. If you hooked it up to a bipolar drive, make sure you used only
half of the winding. This cuts inductance to 1/4 of the full winding, and
will give much better speed.

Jon