propeller / anemometer
by FablabGrenoble, published
Anemometer / propellor. Fix on an axis to measure windspeed etc. or just for educational purposes :)
Print with 20 or 30 % infill, mount on an axis, and put in a windy environment!
OpenScad file added, if you want more / less arms etc. Change the value of "N=3; // nombres de pales" on the top for more or less 'arms'. file is annotated in French :)