Harprit SandhuHarprit Singh Sandhu, BSME, MSCerE, is an American engineer and the founder of Rhino Robots Inc., where he was the chief designer of the 'Rhino' series of robots. In his spare time he is a journeyman designer, machinist & woodworker, whose interest i clock making led him to design & build the spindles described in the book. Read More Read Less