An art toy to be used to draw patterns on a paper. In the SketcUp file there are different sizes of the big inward gear.

Update: A friend found the real name of the thing its a: Spirograph - http://en.wikipedia.org/wiki/Spirograph I didn't know that when I made it. :)

Print and enjoy. :) The stl fits on a 140x140 Huxley bed.