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Re: Building fully flexible tail (several joints) with minimal actuation required
There was some talk about springs in the structure of the tail.
How about this...
try a piece of thin metal, with eye-hooks bolted on along the length Tie off a string/rope/cable to the tip eye-hook, and run the string through the other eyes (acting like the pulleys Al was talking about.) You'll need / want to play with it a little to get the right look. Cheap, easy, fast, robust, not real precise, not easy to control.... but I think it might get the job done. The metal strip is the body AND the spring.
(My prototype for a compliant big ball grabber for 2004 - never to be used)
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Brian Graham
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