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Old 09-02-2017, 05:09 PM
John Wagenseil John Wagenseil is offline
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Strandbeestiary

https://www.youtube.com/watch?v=_I1o04tKC_M
and
https://www.youtube.com/watch?v=LewVEF2B_pM
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Old 09-02-2017, 07:01 PM
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panzerlite panzerlite is offline
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Way too creepy... even with Rachmaninov playing in the background...
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Old 09-02-2017, 10:24 PM
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Those are great.
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Old 09-03-2017, 03:50 AM
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Stunning creations/creatures.
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Old 09-03-2017, 04:17 AM
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CharlieC CharlieC is offline
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The Strandbeests are made from electrical conduit and cable ties - very low tech. The "legs" are constructed from 11 segments in a particular ratio worked out by Theo Jansen to give a walking ability. You used to be able to buy a plastic model of a Strandbeest with small windmill to power it. There is a website on Strandbeests - STRANDBEEST.

Charlie
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Old 09-03-2017, 07:11 AM
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There's something hypnotic about watching these 'creatures', must be the repetitive motions.
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Old 09-03-2017, 04:12 PM
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and to think I made blow dart guns out of that conduit, if i was smarter I could have been a contender......
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Old 09-03-2017, 05:29 PM
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CharlieC CharlieC is offline
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According to Jansen he used a genetic algorithm (*) to derive the ratios of the lengths of the leg parts. It took an immense amount of time to run on a 1990s computer.

Some of Jansen's mechanisms are very ingenious such as harvesting wind power in plastic soda bottles to give the initial impetus to get a Strandbeest walking.

I have seen a paper Strandbeest - it probably wouldn't be too difficult to create a card one.

Charlie

* - for the non computer people a genetic algorithm emulates evolution by creating a population of solutions to a problem. Then the population is mutated (changed) and the descendants compete with the parents for selection into the next generation based on how "fit" they are. It's a fairly efficient algorithm but can take a long time to run.
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Old 09-03-2017, 05:38 PM
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Paper StrandBeest: 7 Steps
Paper Strandbeest Mk 2: 8 Steps

Here are two Instructables on Paper Strandbeests
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Old 09-03-2017, 06:01 PM
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And another one - Papercraft Theo Jansen Walking Machine - Making Paper Walk: 14 Steps (with Pictures)

This one looks like it would work pretty well.

Charlie
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