What should the Steps Per Unit be?

The Steps PerUnit is a calculated value of how many step pulses are required to move the
axis one Native Unit (inch or mm). Section 5.5.1 of the “Mach3Mill Install and Config Guide”
discusses the necessary calculations in great detail.
In Mach4, there is a StepsPerUnitCalculator Wizard available to help you calibrate your axes
and find the correct value for your steps per unit.