Subject:
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Re: Linked cranks mechanical puzzle
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Newsgroups:
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lugnet.technic
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Date:
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Sat, 6 Feb 2010 20:34:04 GMT
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Viewed:
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19749 times
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In lugnet.technic, Alexander Holroyd wrote:
> Here is my current favourite MOC:
>
> <http://www.youtube.com/watch?v=O7_wfKJAX7s>
> <http://www.brickshelf.com/cgi-bin/gallery.cgi?f=418894>
>
> It's a Lego implementation of an amazing mechanical puzzle invented by
> Oskar van Deventer and Bram Cohen, as seen here:
>
> <http://www.youtube.com/watch?v=j6J_cHM9mEw>
>
> I can't improve on the explanation given in this second video - just watch it!
> Basically it's a puzzle a bit like Rubik's cube, in which you scramble it and
> then try to get back to the starting position. (Much easier than Rubik's cube,
> but a very interesting mechanism).
>
> Planetary gears like in the original did not seem practical, so it was quite an
> interesting challenge fitting the necessary gearing into this small space. (My
> first attempt fell apart because there was actually no connection between the
> two halves!)
>
> I think there's great potential for mechanical puzzles in Lego - I've seen a few
> but not many...
>
> Enjoy! Alexander
Really nice. And thanks for the LDraw instructions. I really like building this
kind of contraptions and mechanisms.
Jetro
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