Originally Posted by
Jim Dawson
The minimum step count / rev is 500 (Gear Number), so at the max speed of 3000 RPM (50 rev/sec) would be 25,000 steps/sec. Given the limitations of Mach3, new firmware might be a good plan. It's my understanding that Mach3 is good for 25K to 100K steps/sec depending on your computer.