New strategies implementation to improve the usability in educational or industrial environments for people with physical disabilities is a complex process due to it involves multiple approaches for a suitable adaptation. The advances of these strategies often have to adapt itself to elements of conventional human-computer interfaces. In this work is proposed a machine design aimed to locate a pointing device in the user head without the aid of a third person. The machine may assist people with physical disabilities in the arms. It may also support cases in industrial environments where for some reason arms cannot be used.