Algodoo

Thank you s_noonan for making this possible.

This is a negative damping spring engine using the circle gear set. It works as a stroke multiplier with the gears in a 2:1 ratio. Interestingly also, if you attached a tracer to each tooth of the small gear in the center, they would all trace stright lines crossing at exactly one point. In this engine, the rod is attached to the dark blue tooth on the small gear