Modular configuring robot systems are autonomous kinematic machines with variable morphology. Conventional actuation, sensing and control typically found in fixed-morphology robots, configurable robot is able to deliberately change its shape to adapt to new circumstances, perform new tasks. Modular robots composed of multiple building blocks with uniform docking interfaces allow transfer of mechanical moments, electrical power and communication throughout the robot.  The modular building blocks consist of primary structural actuator units, battery, micro-controller, communication units and sensors.  There are two key motivations for designing modular configuring robotic systems. Configurable robotics systems are potentially more adaptive than conventional systems. The configuration ability allows a robot or a group of robots to disassemble and reassemble machines to form new morphologies that are suitable for new tasks. Configurable robotics system can potentially lower overall robot cost by making a range of complex machines out of a single type s of mass-produced modules.