Jayson,
-The manual and cycle screens have an MDI line but they are not labeled in turn.
-Loading the mill screen set to calibrate the axis will work. Make sure you save the settings prior to closing Mach.
the axis calibration will only ever be as accurate as your measurements
Most folks will have a problem since they can't accurately measure a long distance ie; 12 , 24 , 36" distance. What you actualy do is
set / calibrate your steps based on a long axis travel and then check at a short travel. As far as the calculated, what Hood states is exactly true
and one must recognize that inaccuracies in each component of the axis may have an affect on the steps per unit.
RICH