[Skyentific] is experimenting with this mechanism and built a 6-degree-of-freedom robotic arm with it ... how these work with both cardboard cutouts and 3D printed models. Stacking three of ...

He always wanted to construct a robotic ... arm out of aluminum. Once he had all six of his servos attached to the arm’s joints and wired to his Roboduino, he got busy constructing a 3D model ...