Abstract: A modular, multi-configuration robotics system having basic interchangeable component parts including a base (10), turret (110), rails (20), mounting blocks (30), motors (80), arm links (60) as the primary components and also including bearings (180), pillow blocks (170), gears (176, 178), various shafts, pulley, belts, electronic controller and optical encoders (184) as additional essential component parts. The system is intended as a tutorial device in the field of educational robotics.