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April 6, 2011 07:40 am PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/xwVxiaEhhxU/mobius-gear-a-one-si.html
Mbius Gear: a one-sided, toothed gear
UC Berkeley postdoc Aaron M Hoover combined math and imagination to solve the problem of building a one-sided "Mbius gear." He rendered it and then output molds for it on a 3D printer, cast them, and assembled his freaky, mind-melting beast. While searching for a suitable project for CS 285 (Procedural Solid Modeling) I was introduced to the Mbius gear by Professor Sequin. I was immediately intrigued by the curious combination of the Mbius mathematical surface popularized by M.C. Escher and functional mechanical gear elements. After some time staring at and puzzling over this image, I convinced myself that this mechanism is indeed possible and that with right tools, a functional prototype could be built. (The entire mechanism essentially boils down to an oddly configured set of planetary gears. One can think of the black portion in the image as the ring with a fixed zero input velocity. A single blue gear is a planet, and the white strip is the sun. Output can be taken either from the sun or the planets (with no regard for practicality!). In practice, however, it's easiest to actuate the Mbius strip (the white portion). The Mbius Gear (via Neatorama) Mbius Bagel: interlocking, endless, doughy rings of math - Boing ... Video of Mbius transformations - Boing Boing Mobius Strip Story (video) - Boing Boing Infinite bookshelf can't hold infinite number of books - Boing Boing Bach canon played as a moebius strip - Boing Boing What is Palladium? What is the area of a Moebius Strip? - Boing Boing...
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/xwVxiaEhhxU/mobius-gear-a-one-si.html
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