An application, AutoDesk ForceEffect Motion, was used to create a 4-bar mechanism based on the desired path of Sisyphus' feet. When actuated at point A, the links drawn in black produced a near elliptical path shown in blue, which indicated the path of the feet. The red lines represent velocity vectors at select points along the path. We then implemented this design in SolidWorks to create our mechanism.
The prototype was made primarily out of wood. The large circle, representing the world, spins opposite the smaller circle. The figure walks along the incline, continuously pushing the boulder.
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