This is a project i did for my Open thesis Fabrication, program in the Institute of advanced architecture of Catalyna, in Barcelona, Spain. It is a wind-turbine, that can be solely 3D printed in a RepRap machine, in order to provide people with free harvested energy. The project is still under way so i would appreciate anyone that would be welcome to try to make it, and let me know his ideas. I would also appreciate some help on the electronic part of the project.All the STL files are included. I will upload soon the 3dm files also so that you can manipulate it in rhinoceros. You only need to upload the files in replicator and 3d print it. The assembly is very easy, i include a diagram that you can follow to make it, as well as some renders of its final shape. The only thing you will need to buy is some 3mm bolts, a dc motor (diameter 27mm, length not more that 37mm) and a two slot AAA battery charger. or i guess any other kind of battery. The motor can change also, in power although the diameter has to be the same.Remember, this is still a work in progress, i would really appreciate any kind of feedback on this project!P.S : Of course these files fit in any 200x200mm 3D printer it doesn't have to be a RepRap, i just suggest it because of the cost, but if you have access to any other kind of 3D printer that can print that size, then probably you can achieve better resolution also.Thank you very much,Mihalis Fountouklis