Stackable C-Rotor Vertical Wind Turbine VAWT

The C-Rotor is a VAWT where it is not 100% clear, where and when it was invented. There is a pretty good documentation on www.daswindrad.de (in German only).

You can either print the bottom part only once and use the cover, or you can alternatively print the bottom several times and stack them (twisted by 60 degrees), using the cover only on the uppermost part. I am using 2 bottoms and the thing spins nicely in my garden at pretty low winds.

I glued all parts together with semi liquid cya