Converts a motor position (X, Y) to a work position for a specified axis.
Assumes the positions are in the same units as set in the system settings.
to_work_xy(x, y, axis)
Convert a motor position (150, 75) to a work position for axis 0
to_work_xy(150, 75, 0);
Convert a motor position (200, 50) to a work position for axis 2
to_work_xy(200, 50, 2);