1m Wind Turbine

thingiverse

This is a 1-meter diameter wind turbine capable of producing over 100 watts power in 10 meters per second winds. Each of the three blades is printed in four sections that are assembled using small dowel pins of various sizes and then fused together with acetone. WARNING: The blades must be reinforced with a layer of fiberglass or carbon/epoxy for structural integrity. Do not attempt to run it without reinforcement as the turbine has been designed to spin at over 1000 revolutions per minute and can cause serious injury if it tears itself apart at high speed. The various brims and support blades need to be cut away with a sharp knife. The blades have proper aerodynamic cross-sections (NACA4412) but the trailing edges must be sharpened up with a flat file after all sections have been fused. Also, it's extremely important: The hub part is only meant for mounting the blades in their correct positions and locating the spinner - it's not a structural component. A proper machined metal disc is required for attaching the turbine to a generator. For a more detailed procedure, check out my Instructable: http://www.instructables.com/id/1m-Wind-Turbine/ Update: I uploaded a DXF file for the metal disc adaptor that has the positions of the M4 mounting holes. Note that the central hole must be made to fit your generator's shaft and the disc may require additional mounting holes to suit whatever flange the shaft has. Print Settings: Resolution: 200 micron Notes: To be printed in ABS.