This application works exclusively with CNC hardware whose development is explained in this web page: https://sites.google.com/site/controlofmachines/control-maquina-4-ejes The system supports "manual" movement of the 4 axes. In addition, 6 complex movements are offered, which correspond to the most common manufacturing processes: manufacture gears with a V-shaped cutter, manufacture gears with a milling cutter with involute profile, manufacture circumferences and circles, grooving and facing,