Cool 3D printed Wind Storage design

Nice build where the vertical mill will slowly raise the bar for storing energy, then when you “release” it powers the fan on the right side.  This could be a cool toy to show kids about potential and kinetic energy.

http://www.3ders.org/articles/20150806-designer-mike-blakemore-3d-prints-an-ingeniously-simple-wind-energy-storage-unit.html

Design is here:

http://www.thingiverse.com/thing:952564