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« on: April 24, 2007, 08:31:17 AM »
Hey Glenn,
That sounds a little high to me but, there really is no such thing. Steps per dictates the degree of resoloutin you have. The min. amount of steps you can send is 1. At 40,000 you have a resoloution of .000025. Steps per can limit your max speeds. This is why, you can only generate 45,000 pulses per second. So, 45,000 X 60 = 2,700,000 pre minute. For your setup of 40,000 steps per the max speed would be 2,700,000/40,000 = 67.5 IPM at 45Khz. There are things that can be done to get higher speeds though. Gearing, drives, leadsrew pitch, etc. As for yours stalling, try slowing things down in you motor tuning and see if you can get it to run smooth and not skip steps. Lots of things can cause that. Motors that are too small, power supplies that are too weak, a mechanical bind, too much tool load, etc.
I hope this helps
Brett