Remix of [Optical Illusion Pinwheel from Dalpek](http://www.thingiverse.com/thing:705095/)
with bigger blades and 608 (2RS) bearings.
Turns into the wind.
Uses [original blades](http://www.thingiverse.com/thing:705095/#files), printed with 180% of original size.
Needs three 608 (2RS) bearings and a 4mm diameter rod