http://hackaday.com/2013/08/21/amazing-flight-of-a-3d-printed-rubber-band-powered-ornithopter/
We’re actually going to link to an old post from back in February because we think it’s equally as impressive as the most recent work. This is a 3D printed ornithopter powered by a rubber band (translated). The frame is much like a traditional rubber band plane. The difference is that after winding it up it doesn’t spin a propeller. The flapping of the four plastic membrane wings makes it fly like magic. Seriously, check out the demo below… we almost posted this as “Real or Fake?” feature if we hadn’t seen similar offerings a couple of years … Read the rest
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