Warco Major CNC build log

[irving2008]

Hi Kip

The cable goes from the front of the cabinet, out the back, up by the column and then forward again.

I'm using the MSD542 driver at 40 Volts.

18mm/s is top whack, would never dare run it at top whack, 10-12mm/s is probably credible for the G00 though.

It's a bit cluttered at the top, but I could probably mount a driver and PSU within 6-10" of the motor if I had to :naughty:

Robin

As John said, speed is a factor of voltage and, I'll add, inductance of the motor. Higher inductance, lower voltage = lower speed. Also remember torque, speed and power are related. So it may well be that these motors running at that voltage simply can't produce enough torque to operate reliably at a higher speed. Can you get higher revs (step rate) off load under the same conditions?

Cable length is going to make little difference unless its so thin as to be dropping considerable volts.

What size/spec of motor are you running?

[Robin Hewitt]

As John said, speed is a factor of voltage and, I'll add, inductance of the motor... What size/spec of motor are you running?

Yes, but the question is...

Why did the max speed decrease when I doubled the Amperes?