DIY Helical Wind Turbine
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Helical vertical-axis wind turbine with twisted blades to increase the efficiency. - Size: 190x190 mm base, 210 mm height (sized to maximize the printing volume of PRUSA MK3 printer) - Recesses for a press fit for 608 roller skate bearings (22mm outer diameter) at the top and bottom. - M3 screw holes at the bottom of the base ring to allow increasing the inertia with M3 bolts. Three equidistant mounting holes around the bottom bearing for mounting custom accessories (such as belt pulleys, should you want to connect the turbine to a dynamo or some other driven mechanis) - Recommended material: PET-G, 0.3 mm layer height. 3 perimeter walls (with 0.4 mm nozzle)
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