About this 3D model
Printing with 2 shells and 0 infill looks and works great! I have one shell one the bottom, but it is unnecessary. Swapped filament twice during print to get the colored effect. I had to increase the tolerance to 0.31 to get my gears to print separately. I might try it again at 0.29. Customized version of http://www.thingiverse.com/thing:53451 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=53451