Hi Hood,
Sorry that's me shortening the figures - yes steady at 24994 with the odd 24992 or 24993, and then the odd 24995 - all those over and below 24994 are for a fleeting second or so whilst mainly steady at 24994. Regarding the odd stall on the particular .nc programme would a Smooth Stepper cure this? Willing to do anything that cures this problem - head against the wall time (now getting pretty hard!!). It is not just this prog that has the problem but happens in some others (not all) too - and sorting all mechanical and stpper motors, etc hasn't cured it. I can jog the X & Y axis all day long with the arrow keys and it runs perfectly - just when running in a programme that has the problem.
GB