Screwless Sphere Gears

This was based on Eccentric Sphere Gears (http://www.thingiverse.com/thing:6499). I modified the SCAD files so that it would use pins instead of screws to secure the gears to the center piece. Also, this one is not eccentric so that the gears spin without the object changing shape. The STL files are already plated for printing (it can be done in 3 prints).

Individual gears and center now added. Note you would need to print 4 of each of the large and small gears - and the 'singlepins' (s