need help please with circles created in bobcad cam . once g code is loaded in mach 3 the shape changes to like a oblong or similar shape,not the way i draw them in bob cad. i have not used mach 3 in years so i cant remember what i changed on the gcode or in configuration to make it correct/
thanks in advance

Might be that you messed StepsPer in motor tuning or you have some mechanical problem.

Post your code here so we can check it.