there are a few new tools available to help create the most efficient wind turbine possible, provided you have a 3D printer. [Jan] created this turbine with the help of QBlade, a piece of software ...

Wind turbines ... WinDIY design is mostly 3D printed, with a familiar three-bladed design. The diameter of the rotor is 1.2 m, meaning that braking and regulating the turbine is required for ...