Quote Originally Posted by cropwell View Post
Done all that, completely reinstalled Mach3, used Driver Test.exe, got Goldilocks results, too slow, too fast, and just right. Smooths out as the motor velocity setting is lowered, but too slow to use, and still sounds poorly.
When you re-installed Mach did you use your existing XML or make a complete new setup.?

Clusting straws a little but if you used existing XML it could be corrupted so for sake of 10mins it may be worth re-entering the settings into a new profile just for elimination purposes.?