Coordinate system definition with reference to machine or work part
Machine coordinate system
The machine coordinate system of the CNC machine tool is defined by the manufacturer and cannot be
changed. The point of origin for this machine coordinate system, also called machine zero point M, cannot be
shifted in its location (see figure 21).
Work part coordinate system
The work part coordinate system is defined by the programmer and can be changed. The location of the point
of origin for the work part coordinate system, also called work part zero point W, can be specified as desired
(see figure 22).
M X