high output windmill/hydropower from pop bottles (stackable)

thingiverse

Its intended for assembly on 5/16 threaded rod, fitted with bearings at each end. You can stack this spiral structure, yielding a cumulative output of over 100 watts when combined with the design found at http://www.thingiverse.com/thing:633603. All you need to add is a frame and some gearing to bring it to life. This setup shines particularly well in direct sunlight, radiating an enticing sparkle. At present, I have yet to successfully print this assembly, so hold off on taking my claims at face value until I've confirmed the print quality firsthand – unless you feel inspired to tackle the challenge yourself! For hydropower applications, I caution against exposing the structure directly to water; instead, allow it to float atop a submerged tire tube or similar floating device. Additionally, I'll be revisiting the design to refine the appearance of the topmost spokes in the near future. This setup can, theoretically, be crafted with basic tools and materials – take a 2x4 wooden dowel, roughly 48 inches long, as your core and supplement it with pop bottle caps screwed into place via bearings or makeshift bushings (though this configuration is not highly recommended). V6 appears promising thus far; nonetheless, actual results depend on the success of my impending print.