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  1. #311
    Senior Member gunn parker's Avatar
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  2. #312
    Senior Member schrochem's Avatar
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    Quote Originally Posted by warbonnetguy View Post
    hey scott,
    that black diamond keychain biner of mine weighs 26g, which is only a couple grams lighter than an ultralite full strength one. both of which have to be lighter than a steel quick link. those quick links especially the smaller ones have a tiny gate opening, making them a pain.

    how bout a diy webbing hook? bet you could make a good one that would be plenty strong even without a gate.
    Thanks for the info.
    I have a 3/16" quick link that weighs about 17g and has a working load limit of 660lbs. I bought it at lowes or home depot I believe.
    I was going to try it out today but forgot about it.
    It's about 2" long and 1"wide.

    BUT, you suggestion on making my own hook type thing is excellent!
    I attached a quick idea but it doesn't look like it would hold.
    Attached Images Attached Images
    Scott

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  3. #313
    wow. i would have thought those steel quick links would be heavier.

    yeah, i was thinking more along the lines of a biner without a gate. like the letter C or the #6 or a fish hook shape.

  4. #314
    Senior Member schrochem's Avatar
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    Quote Originally Posted by warbonnetguy View Post
    wow. i would have thought those steel quick links would be heavier.

    yeah, i was thinking more along the lines of a biner without a gate. like the letter C or the #6 or a fish hook shape.
    Well I could just use the quick link without linking it and it would be a C
    But I know that would bring the rating way down.
    I know there were smaller quicklinks at the store but this had a decent load limit and felt lightish.
    I'll try to remember to test it tomorrow.
    Scott

    "Man is a stream whose source is hidden."
    RWE

  5. #315
    Quote Originally Posted by schrochem View Post
    Well I could just use the quick link without linking it and it would be a C
    But I know that would bring the rating way down.
    I know there were smaller quicklinks at the store but this had a decent load limit and felt lightish.
    I'll try to remember to test it tomorrow.
    remember what rapt said about safe working loads generally being 1/3 to 1/5 of the actual min. breaking strength.

    600# working load could mean 3000# break strength. seems like with biners, the open gate strength is generally about 1/3 of the closed gate break strength
    Last edited by warbonnetguy; 09-16-2007 at 22:31.

  6. #316
    Dutch's Avatar
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    I took my large 9s to work to see if I could break one. I filed down the teeth so it would not be abrasive to my rope. I used 4mm nylon rope from REI with a 900 pound limit. I lifted 330 pounds no problem. Kept it suspended for an hour. Than I lifted 520 for 1/2 an hour. Then 730 pounds for an hour. And finally I lifted 920 pounds for a half an hour. At 920 pounds the rope started to tear on the outer casing but no big deal. I know they only have 150 pounds as a weight limit but these things are way over engineered. At 30 grams it better hold a person. However you could cut at least 10 grams off, but I think I can make something lighter.






    By the way the last couple prototypes look awsome and very professional. And no turk I can't break one for you. The hoist I'm using only goes up to 2 ton.
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  7. #317
    Senior Member turk's Avatar
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    Well I feel infinitely better. Thanks Dutch! Thats just what I need to
    put my mind at ease. I have done some dangerous hangs, and the very
    last thing I want is personal risk due to my suspension system. If the
    regular 9's are that strong, what I think I will do is take my last model
    Figure-T's and scale them down to less than 1/2 the size.

    And yes, WBG... the current ones could probably hoist my truck
    I know it was overkill.... but I was paranoid. Now I will feel better
    making little ones.

  8. #318
    GrizzlyAdams's Avatar
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    Quote Originally Posted by Dutch View Post
    I took my large 9s to work to see if I could break one. I filed down the teeth so it would not be abrasive to my rope. I used 4mm nylon rope from REI with a 900 pound limit. I lifted 330 pounds no problem. Kept it suspended for an hour. Than I lifted 520 for 1/2 an hour. Then 730 pounds for an hour. And finally I lifted 920 pounds for a half an hour. At 920 pounds the rope started to tear on the outer casing but no big deal. I know they only have 150 pounds as a weight limit but these things are way over engineered. At 30 grams it better hold a person. However you could cut at least 10 grams off, but I think I can make something lighter.
    Yo Dutch-
    thanks for doing the testing. I picked up some big 9's a while ago and now have a much better idea of where their limits aren't. Thought turk's insight to thread webbing through them was cool, and filed that away for future reference. Probably I'll file down the teeth before I file away the idea...

    Grizz

  9. #319
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    that puts my mind at ease too, thanks! now, if it can hold longer then 900 lb rope, it better be able to support a loaded hammock. someone calculated roughly 1200 lb weight limit for the larges.

  10. #320
    Senior Member schrochem's Avatar
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    Dutch, this is great!
    You accomplished two things. First that the nine can hold a lot of weight.
    Second, the WBG hitch is also satisfactory. I also noticed there wasn't a half hitch in there. Is that true?
    Too cool
    Scott

    "Man is a stream whose source is hidden."
    RWE

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