I once wanted to make a wind/water turbine to generate electricity.but I have no wood/metal-working skills so the project failed.but since I heard about 3d printers the idea of just printing it came to mind.so here I designed a turbine in openSCAD.its probably not that good and I have doubts about the printability and durability .but I hope somebody has use for it.
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Imported from Thingiverse: https://www.thingiverse.com/thing:1613
Original creator: random