Well Guys
I have received my Smooth Stepper, and it did not help maters.
If I load a normal size file, no problems.
Large files still make mach sluggish, press a jog key and it hesitates then jogs about .5"
Has no one tried the large file I posted to see if they're system does the same?
This makes Mach useless for large Litho's and 3D carving with lots of detail.
I know I can go back to R3.039 and parallel port, but that defeats the purpose of the smooth stepper and updated versions of Mach.
Thanks Barry