Subject:
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Re: 60 degree problem
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Newsgroups:
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lugnet.build
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Date:
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Wed, 13 Jan 1999 18:35:44 GMT
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Reply-To:
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lpien@iwantnospam=IHateSpam=.ctp.com
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Viewed:
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1026 times
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Duane Hess wrote:
>
> James Brown writes:
> > Essentially, a perfect 120 "y".
> > That still doesn't quite get the angles right, but I think it gets the point
> > across. I have connected the hinges together with 2x2 plates over each of the
> > three 'sides' so there is no freedom of motion in the hinges (alternating • these
> > layers makes for a very solid structure), and am trying to figure out a way to
> > anchor a single larger plate to all three orientations.
> >
> > My original question still stands - does anyone have a solution for me?
>
> Have you tried a Technic 3 blade rotor? It's not *quite* what you are trying
> to build, but I think it should be workable.
A 3 blade rotor will give the same angle geometry but I don't beleive it
is what James is asking. I believe he is asking how to anchor something
to the top of this assembly that is connected to all three legs.
Geometrically, there is no arrangement that will work, as there is no
right triangle with integral side lengths that has a 60 degree angle.
The length of the hypotenuse is not a rational number if the smaller
side is 1.
Therefore to fix a rectangular plate at the top of this you will need to
use some sliding component somewhere.
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Message has 1 Reply:
 | | Re: 60 degree problem
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| (...) trying (...) :-/ That's pretty much the same conclusion I came to. Unfortunately, I can't get enough stability from that with the current design. <sigh> Back to the drawing board <grumble grumble bitch bitch> I _liked_ that design too. Maybe (...) (25 years ago, 13-Jan-99, to lugnet.build)
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Message is in Reply To:
| | Re: 60 degree problem
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| (...) connect (...) my (...) these (...) Have you tried a Technic 3 blade rotor? It's not *quite* what you are trying to build, but I think it should be workable. Duane (25 years ago, 13-Jan-99, to lugnet.build)
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