MABEL

Overview

MABEL is a biped based on the Electric Cable Differential (ECD) Leg designed by Dr. Hurst. In collaboration with Dr. Grizzle, MABEL was designed for for running, walking, jumping, hopping, and generally behaving in a highly dynamic manner. Large fiberglass springs are used for storing the energy of a running gait, much like the springs in a pogo stick or the tendons in a kangaroo.

The name "ECD Leg" is derived from the method of actuation and power transmission; we use electric motors, which offer much simpler and more precise computer control than pneumatic or hydraulic actuators. The motors are connected to the leg joints using steel cable wrapped around aluminum pulleys, and there are several mechanical differentials to implement the desired relationship between the electric motors, fiberglass springs, and leg joints.


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CAD Models

You can download a complete set of CAD files (SolidWorks) for the robot. With these files, you can have all of the parts of the robot machined.