Last we checked, plastic isn’t metal, and so 3d printing a turbine to give the extremely hot exhaust something turn just isn’t going to work. But what if you just skipped the whole turbine ...
The 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 safety in high winds.