After every cut the gcode will return the machine to zero. If you turn on mach2 in the mornings it will assume the axis are at zero, and it will be. You just have to set the Z axis only.
If however you bumped your machine while it was off your zeros would be out, and it could cause all sorts of dramas.That is why it is wise to either have zeroing switches or just set up all your machine each morning. |