I have the following steppers on my 24x24 DIY CNC router: (Highlighted one)
http://www.cnczone.com/forums/attach...d=345358&stc=1

57BYGH633 (6 leads)
3v, 3a, 1.6mH inductance

I'm currently running them using TB6600 with a 24v PS. The motors are wired in half-coil. The drives is set at 4 microstep (800 steps per rev) and the amperage on the driver is set at 2.8A.

I know that in half-coil the stepper gives less torque but having a 24v I wanted to keep the inductance as low as possible to be able to achieve higher speed.

During tests, I've achieved 1250RPM which gives near 400 IPM using T8 screws on X and Y axis and never managed to stall the motors. I don't remember what are my acceleration settings but I get full speed in less than 4 inches.

I found that the motors were screaming at 400IPM so I set rapid to 275IPM since the CNC can travel the 18x18 working area in less than 4 sec. I felt that it was safer.

I managed to get used AM882 driver to replace the crappy TB6600 but since these driver can accept between 20v and 80v PS, I wanted to upgrade my PS too and make sure that it matches the motors correctly.

What would be the best voltage for these motors? Is it ok to set the amperage on the drive to 3A? Will it affect the motor heat? Can I wire the motor differently to achieve more torque in order to take deeper cuts and have better accelerations? I don't want to sacrifice speed though. I've burned my share of cutter.