Quote Originally Posted by HiltonSteve View Post
My machine runs the steppers at 1000rpm for rapids and even had it up 1500rpm at one point but was just too fast for the machine.
Aha! You to have a comfort zone :heehee:

I have the 220 Volt drivers so presumably it should go like the absolute clappers once I get the 48MHz dedicated cpu rattling the driver pins.

Thinks: Max step rate 40Khz, divide by 1600 steps/rev, 25 rps, 1500 rpm, 10cm/second rapids resolving 2.5 microns

No, I'm not brave enough either :rofl: