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Thread: Nacrabiners

  1. #21
    Senior Member opie's Avatar
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    For the record... all Ive done is copy this... Minus the rubber o-ring and a different stopper.


  2. #22
    Senior Member TiredFeet's Avatar
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    Quote Originally Posted by opie View Post
    No, I don't think you can. The carrick(sp) bend requires 2 seperate lines.
    Sure you can, I do it all the time.

    Just think of tying the diamond knot for the nacrabiner. Single line doubled over giving 2 lines.

    For what you are doing, the usually large loop of the nacrabiner is very small (an inch or less) and not used.

  3. #23
    Senior Member opie's Avatar
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    Quote Originally Posted by TiredFeet View Post
    Sure you can, I do it all the time.

    Just think of tying the diamond knot for the nacrabiner. Single line doubled over giving 2 lines.

    For what you are doing, the usually large loop of the nacrabiner is very small (an inch or less) and not used.
    Im not seeing it.

    2 seperate lines is how a carrick bend is tied. If someone wants to show me how to tie a diamond knot using 1 line... Im all eyes!!

    EDIT: Wait.. I think it just hit me.

  4. #24
    Senior Member opie's Avatar
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    OK... Update time.

    So I tested the prototype... I dont have access to the machine Ive used in the past, but what I did have access to is a JD 4x4 gator and a JD850 tractor.

    So I set the brake on the tractor and put it in gear. Then I hooked the gator to the tractor using a chain with the shackle being used as a link between the chain and the hitch on the gator. I successfully pulled the tractor all over the inside of the building it was parked in. I did have to put the gator in 4 wheel drive in order to do it.

    So with that, static load test done, it was time for a dynamic test. So I let the tension off and then gave it about another foot of slack... then I hit it with all the gator had... and it failed. Failed inside the blood knot. The blood knot itself didnt budge, slip or otherwise show any indications that it moved.

    I have slimmed my original down to this.....



    Just over 3" end to end and weighing in at 4 grams.

    Ill be giving this a hanging test this weekend while Im in Da UP.

  5. #25
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    For those of you that got a little confused like me...
    Blood Knot (ABOK #516) = Double Overhand Knot

  6. #26
    Senior Member opie's Avatar
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    Quote Originally Posted by jbryan View Post
    For those of you that got a little confused like me...
    Blood Knot (ABOK #516) = Double Overhand Knot
    This is not a double overhand knot. I know ABOK sometimes references it as a double overhand.. but it looks nothing like a double overhand based on the diagrams of a DOH I have seen.

    Its also called a Barrel knot.

  7. #27
    Senior Member opie's Avatar
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    And here it gets confusing..

    Someone is calling this..

    http://killroys.com/knot/barrel-knot-or-blood-knot/

    a barrel or blood knot.

    Then there is this blood knot...

    http://en.wikipedia.org/wiki/Blood_knot

    What Im using is the last knot in this vid..

    http://www.ehow.com/video_2358850_ti...g-lessons.html

  8. #28
    Member wetware1967's Avatar
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    opie,
    The other knots you just referenced are what I've always known as blood/barrel knots.

    Based on the vid showing the knot you're using, it looks like a triple overhand stopper knot. The way he goes about tying it is a little different, but the hitches/end result are identical.

  9. #29
    Senior Member opie's Avatar
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    Quote Originally Posted by wetware1967 View Post
    opie,
    The other knots you just referenced are what I've always known as blood/barrel knots.

    Based on the vid showing the knot you're using, it looks like a triple overhand stopper knot. The way he goes about tying it is a little different, but the hitches/end result are identical.
    Interesting. I know on an overhand knot there is a length of line running outside the knot itself. In this, there is no such line. Everything is inside the knot. I can see why it could be called a barrel knot.

  10. #30
    Senior Member oldgringo's Avatar
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    Quote Originally Posted by opie View Post
    OK... Update time.

    So I tested the prototype... I dont have access to the machine Ive used in the past, but what I did have access to is a JD 4x4 gator and a JD850 tractor.

    So I set the brake on the tractor and put it in gear. Then I hooked the gator to the tractor using a chain with the shackle being used as a link between the chain and the hitch on the gator. I successfully pulled the tractor all over the inside of the building it was parked in. I did have to put the gator in 4 wheel drive in order to do it.

    So with that, static load test done, it was time for a dynamic test. So I let the tension off and then gave it about another foot of slack... then I hit it with all the gator had... and it failed. Failed inside the blood knot. The blood knot itself didnt budge, slip or otherwise show any indications that it moved.

    I have slimmed my original down to this.....



    Just over 3" end to end and weighing in at 4 grams.

    Ill be giving this a hanging test this weekend while Im in Da UP.
    That's a pretty tough test. What end use do you envision that would require a knot that would hold up to that?
    Dave

    "Loneliness is the poverty of self; solitude is the richness of self."~~~May Sarton

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