Algodoo

Just have to find the small problem stopping the mechanism from mimicking the video.

If you know how to make this work, please let me know.

EDIT: The mechanism is supposed to look like this: http://g2labo.orz.hm/bridge/watch/sm5717572 (bridge used so you can watch nicovideo videos without an account, the blue tracer is the path meant to be created).

Still keeping at it though.

EDIT2: Draws a two, every 2 full rotations, just need to modify my code somehow to modify it to that point, after which, it should work .