Quote Originally Posted by JAZZCNC View Post
What controller you using and how many volts. Do you have a ratio on that because at 1:1 that's 2500Rpm.!!
it's 1:1 with couplings, I have 80v PSU self build 1kva and AM882's 1 per Nema which can drive up to 8amp's I believe.

I think the screw whip is just over 2000 rpm for this length so I was surprised it went up to 20m/min.

DDCSV 2.1 I have microsteps set to only 2 at the moment the minimum the AM882's will let you set them from the jumpers.

2*4nm Nema 23's from CNC4you on the bottom axis, 1*3nm on the gantry both fire fault protects when I go over 20m/min but under seem to work but I would never run then that fast lol.

Rest of the machine is not up to the job for sure.