24/ They performed a bunch of sliding tests with their mouse model using an inclinable ramp to figure out what angle they needed...pic.twitter.com/tbWSgH5O0m
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33/ So they used our
#Formlabs 3D printer to print out a bunch of#bioinspired scales that would nest perfectly together and overlap one another.pic.twitter.com/JtEsZIjFxN
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34/ The scales were individually glued to a thin sheet of silicone, which allowed for overall flexion of the layup. They discovered that increased spacing between each scale yielded greater flexibility, but wondered whether there was a tradeoff between flexibility and protection.pic.twitter.com/rZw98QsIPV
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35/ To test the puncture resistance of different scale designs, they dropped a weighted spear onto scales from increasing heights, and measured the momentum required to break the scales. https://www.youtube.com/watch?v=TtsUx0-aAlQ …
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36/ (BTW, thanks to those who offered suggestions before on how to measure puncture resistance:
@invertenerd@kenaley@EC_carrington@JacobPeters10@TomDoesScience@robincoope @toadooo. Due to severe time constraints, we settled on this relatively simple test.)Prikaži ovu nit -
37/ The Pangoliers discovered that it required a greater momentum to break smaller scales (not surprisingly), but that this difference was due not only to the size of the scale that was struck, but also to the area over which the force was distributed to the underlying scales.
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38/ They envision PangoGear™ as lightweight, flexible body armor that, when paired with appropriate body-customizing software, could be printed on home 3D printers by consumers who need protective gear for various sports, motorcyclists, etc.
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39/ And that's a wrap for this rundown of student projects from the first offering of my Bioinspiration course at
@BatesCollege. Thanks for coming along for the ride, and I look forward to seeing the outcomes of the next installment of this course!Prikaži ovu nit -
(And it would be sooooper awesome if
@BatesCollege could get a Makerspace up and running in time for the next installment of this course. Hint hint@BatesDeanofFac :)Prikaži ovu nit
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