Have you ever seen a bodybuilder robot? Well I hadn't seen one, until I remembered to build one! Is it the first candidate to "Mr. Robot-Lympia"?
This robot is a 100% original, just based on the real gym machine!
Jokes aside, I will explain how this simple robot works. It has a small, but sturdy and spacious base! At the back, the weights of the machine are represented by black pulleys. Just ahead is the small chair where Mr. Robot is sitting with his arms on the handles. With a large motor under the chair, it moves the handles of the machine, and with the articulated arms of Mr. Robot it seems that are them that are making the machine to move. In association with this motor, there is another one under the weights (on the back of the base) which makes lifting and lowering of them, respectively. Since the weights are attached to the handles of the machine, the movement seems the same!
