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  1. #1
    Member mazz1111's Avatar
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    Amsteel "slap straps"..????

    Hey everyone....wondering if any has tried a version of ENO slap straps using amsteel....I have whoopies now...but don't think I could manufacture my own...but i'm confident I can tie a couple of knots!



    just looking for anybody's input...
    thanks!!!

  2. #2
    Senior Member Bubba's Avatar
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    I have made what you suggest out of some polyester cord using several alpine butterfly loops each spaced about 6 inches apart with loops large enough for a carabiner.

    Whoopies are not hard to make. Lots of info on how to make them out there plus its fun.

    Amsteel is weakened by knots and it is slippery so people recommend splicing over knots.
    Last edited by Bubba; 05-21-2011 at 15:23.

  3. #3
    Senior Member GrizzlyAdams's Avatar
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    I tried spacing alpine butterfly knots on a length of Vectran a couple of years ago. Vectran is high-tech synthetic, quite a bit like Amsteel (but reportedly with less creep), pretty slippery. The alpine butterflys would not hold, they collapsed under load.

    Others have reported success on HF with tying this same knot in Amsteel...so I dunno....YMMV
    Grizz
    (alias ProfessorHammock on youtube)

  4. #4
    Senior Member RootCause's Avatar
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    I've thought about this, but never tried it because of the hassle of threading the rest of the strap through your chosen loop.

    The recent advent of the Dutch Hook has jumped to the front of the line as far as line fastening advances, IMO. I think you could mock up an acceptable substitute with a carabiner, but since these cost $2.50 each, why would one even bother?

    http://www.outdoortrailgear.com/cott...ies/dutchware/

  5. #5
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    There is Dyneema webbing used in some climbing applications, which I guess would be the closest thing to a slap strap. I have not seen it by the foot anywhere though.

    This company makes it but I do not see a sales page.

    http://www.sturgesstraps.com/html/dyneema_webbing.html

    They appear to only take bulk orders.

    4) What is your minimum order and production time?

    Our minimum order requirements are as follows:

    Finished straps or strap assemblies: 500 pieces or $500.
    Stock bulk webbing: $500*
    Webbing made to customer specifications:* Generally, 5,000 yards.*Lesser amounts are allowable
    ***** for webbings from Kevlar®, Nomex® and other specialty yarns depending on construction.
    Production time normally starts 3-4 weeks after samples and drawings are approved.* This may be subject to the
    *** ***availability of material, and will be stated specifically in the quotation.
    Feel free to contact us by phone, fax, or email for more specific information.

  6. #6
    Member colonel r's Avatar
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    I made a tree hugger over the weekend 42" long using a braid of three strands of amsteel 7/64".

    Tried it out and it worked great. Only a small loss in wt 0.5 grams (Hennessey tree hugger 28.9 grams; braided 42" amsteel 28.4 gms.) but gained 3x the strength.

    I had to figure out hoe to back weave the eyes for both ends.

    I have pics but the wife has the camera and will be back end of the week.

    I plan to make another about 60" using 3 strands of different colors. It will make the weaving of the end eyes much easier.

    By the way, I use a toggle and not a carabiner to attach to a whoopie sling.
    Last edited by colonel r; 05-23-2011 at 11:31. Reason: add new material

  7. #7
    Senior Member DemostiX's Avatar
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    1. ......yes, but when there are so many millions of seat-belt straps in junked cars to be repurposed....................

    2. Funny how metal parts fail unexpectedly. Even Dutch's robust-appearing biners are now listed as suitable for ridge-line, not suspensions.

    3. If trees are to be protected I wouldn't think of multiple steel-wire-replacements -- dyneema -- as the way to build tree huggers. I'd think of lengths of ultra-high-strength commercial polyester tape used to pull wire through conduit. (Sorry, brand-name is not coming up.)

    Or, of grosgrain.

    Anyone up for destructive strength tests of grosgrain?

  8. #8
    Senior Member Ramblinrev's Avatar
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    I don't have any figures, but my experience with grosgrain would suggest it is not suitable for suspensions. It seems even less robust than lightweight webbing and I've had that snap on me.
    I may be slow... But I sure am gimpy.

    "Bless you child, when you set out to thread a needle don't hold the thread still and fetch the needle up to it; hold the needle still and poke the thread at it; that's the way a woman most always does, but a man always does t'other way."
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  9. #9
    Senior Member GrizzlyAdams's Avatar
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    Quote Originally Posted by RootCause View Post
    ...
    The recent advent of the Dutch Hook has jumped to the front of the line as far as line fastening advances, IMO. I think you could mock up an acceptable substitute with a carabiner, but since these cost $2.50 each, why would one even bother?

    http://www.outdoortrailgear.com/cott...ies/dutchware/
    Looks to me like the Dutch hook is suitable for a tarp line and loads on it (at most 10s of lbs), but even Dutch magic can't make it strong enough for suspension loads. Am I missing something?
    Grizz
    (alias ProfessorHammock on youtube)

  10. #10
    Member mazz1111's Avatar
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    I was thinking more of just a convenience thing....I personally wouldn't mind a small weight penalty of 2 ounces for a couple of biners so I would not have to bring the whole line through an eye loop each hang.....I have a pair of whoopies now that seem to slip once and awhile...the idea of several loops for a quick attachment sounds interesting..

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