Our Auto Z and Corner Finding Touch Plate system allows for quick and precise setting of your tool height and work piece corner/edge location. Just position the touch plate on top of your material at the corner, connect the clip to your cutting tool, and run the provided macro in Mach 3 to slowly lower the Z axis until the tool makes contact with the touch plate, and then independently contacts the two edges adjacent to the corner. The system will automatically set the Z height and location to that of your work piece, making tool changes and stock changes faster and more reliable.