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  1. #51
    Dutch's Avatar
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    Quote Originally Posted by dejoha View Post
    Thanks for the bump. My first attempt to get a welder fell through. I have a second welder in talks, and to be safe, I am reaching out to a third. I can't tell you how frustrating this is! How hard is it to weld a little metal; even for ready money?! Ive half a mind to learn how to weld and make these myself. Hard to find good help. Maybe I should outsource to china.

    While I stew in my own misery, we visited the (new to us) elementary school my kids will attend starting tomorrow and they had some cool hexagonal playground equipment with a style of the universal joint I am looking for. Unfortunately the company is now out of business (I spent some time trying to track them down).

    Maybe there is another way I can make these myself without relying on others.
    It is really hard to rely on other manufacturers. Nobody wants to do small jobs and to even get in the door sometimes can be a struggle. Finding a small shop in someone barn may be your best bet.
    Peace Dutch
    GA>ME 2003


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  2. #52
    Senior Member Bomber's Avatar
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    Quote Originally Posted by MacEntyre View Post
    Actually, that's not true... I have learned through experience that no hitch or lashing will stay fast on an aluminum pole. You have to tape the pole, and lash the taped part.
    I must admit that i never have tried it with aluminum poles, but i have tried it with Waterpipe(steel i guess) and naturel fiber ropes(i think it was jute or bananafibers?!?)
    But if you make three legged "pyramid" with tight lashings, once the poles are spread out they will hold - in my experience.
    Ive have built numerous tables, benches and even small "towers" this way(well up to 15ft high).

    /Bo
    /Bomber.LTD
    Member of the infamous "Hyperborean Hang Gang"
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  3. #53
    MacEntyre's Avatar
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    Beware aluminum poles, Bomber!

    I lost my skiff twice, and my son's hammock fell on the deck once, before I figured it out. Then I did some tests... nothing works!
    "We must, indeed, all hang together or, most assuredly, we shall all hang separately." - Ben Franklin
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  4. #54
    Senior Member Bomber's Avatar
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    Hmm... this calls for some experimentation. I would think that the "geometry" alone would keep the lashings in place once under tension, regardless of materials... guess not

    /Bomber
    Last edited by Bomber; 08-24-2010 at 08:47. Reason: tipos..... :-)
    /Bomber.LTD
    Member of the infamous "Hyperborean Hang Gang"
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  5. #55
    MacEntyre's Avatar
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    Quote Originally Posted by Bomber View Post
    I would think that the "geometry" alone would keep the lashings in place once under tension, regardless of materials...
    The aluminum slides inside the lashing. I proved this at Trail Days a few months ago, hanging from this stand. One end had tape on the poles, the other did not.
    "We must, indeed, all hang together or, most assuredly, we shall all hang separately." - Ben Franklin
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  6. #56
    Senior Member Bomber's Avatar
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    Quote Originally Posted by MacEntyre View Post
    The aluminum slides inside the lashing.
    I overlooked one thing: how the weight is applied! All the constructions ive made, the force/weight has been straigth downwards - not like "somewhat" sideways in the case of a hammock stand.

    Another question Mac: Do you know how to calculate the "compression force"???
    I have been looking for something like this:

    http://www.dizzystuff.com/

    But i heard that they are somewhat troublesome to deal with. As a spin off i was wondering if it would be possible to make a set off walkingpoles, where locking mechanisms and materials is strong enough.

    Yes i know they will be a lot heavyer than a pair off Titanium Goat AGP`s - but the would solve some problemes for me, on sandy shores with trees or above the treeline....

    But im unsure about what kind of force is applied


    /Bomber
    /Bomber.LTD
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    To much time on your hands? Waste some time here

  7. #57
    MacEntyre's Avatar
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    Quote Originally Posted by Bomber View Post
    Do you know how to calculate the "compression force"???
    If the poles are set up so they are only compressed, with no bending moment, then it's the total load (your weight) divided by the number of poles. As a rule of thumb, just assume that the poles must support your weight, as though you were standing like Karate Kid, balanced on top of one pole.
    "We must, indeed, all hang together or, most assuredly, we shall all hang separately." - Ben Franklin
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  8. #58
    dejoha's Avatar
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    Extendable Hammock Stand

    Gargoyle and I have been passing ideas back-and-forth, trying to find out how to manufacture something like this. Gargoyle had the idea of using ready-made parts and we are thinking of something like this. I thought I might as well share this since the images are uploaded already.

    Any thoughts from the group about structural integrity? I'm excited about the possibility and would like to collect the parts and give it a try.

    [IMG][/IMG]

  9. #59
    Senior Member russmay's Avatar
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    That is the coolest thing. Looks like a Boy Scout Jamboree.
    "The real man smiles in trouble, gathers strength from distress, and grows brave by reflection."
    Thomas Paine

  10. #60
    MacEntyre's Avatar
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    Quote Originally Posted by dejoha View Post
    Any thoughts from the group about structural integrity?
    Just make an amsteel X across the top of each square, and another across the bottom. Then guy out each open side of the 4-way joints at the outer corners to a heavy stake in the ground. The more it is extended, the stronger it will be.

    Do you think the 7' pieces can be shorter?



    P.S. The tarp I have in mind for the Tensegrity Stand will fit this one too!
    "We must, indeed, all hang together or, most assuredly, we shall all hang separately." - Ben Franklin
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