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Thread: Rope taper

  1. #1
    Senior Member RAW's Avatar
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    Rope taper

    Anyone have a video of a taper being performed on some cord/rope?

    And at what point of any splicing process do you perform the taper?
    One article I was reading suggested that you don't cut the loose strands until they're about to be pulled into the bury.

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    Sometimes I taper prior, sometimes after... It works either way and both have their pluses and minuses.

    I dont have a video.... I could do a pictoral, but the original whoopie sling thread has an excellent pictoral and so does the vid link done by Nick...

    http://www.howcast.com/videos/18098-...ing-With-Yalex

    Its different rope, but the premise is exactly the same.
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    Senior Member RAW's Avatar
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    excellent link! thanks

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    Maybe I'm doing it wrong but I don't taper. Using the wire method that Grizz has shown us, I just place the end of the (Amsteel in my case) cord into the loop of the wire and pull it through. Haven't had any difficulty and just kind of massage it as I pull. Other cords/ropes may require a taper but I've done some braided nylon and polyester ropes the same way. I've only done Eye and butt splices though.

    stumo

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    Senior Member PuckerFactor's Avatar
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    The purpose of the taper is not to make it easier to feed the line through, it's to prevent the rope from failing at that point. If you don't taper, the weakest point in the eye is where the standing line goes from double diameter down to single, and it will break there. It has something to do with uneven forces on individual strands or somesuch. I'm sure someone else can explain it better, but the point is, it's for strength that you taper, not ease of making.

    Acer
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    Quote Originally Posted by acercanto View Post
    The purpose of the taper is ...to prevent the rope from failing at that point.
    Acer's right... it is intuitive that stresses cannot be distributed evenly along a rope through a knot. Same is true for a diameter change of 2X. You get a high stress point, and that is where failure occurs.
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    Senior Member RAW's Avatar
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    Next question: What type of rope should I use for a tarp ridgeline?

    I've seen the info about Amsteel not holding knots at stresses as little as 10% of its strength rating (without a backer knot).

    So, what is a different choice of rope that would be better for splicing and knotting?


    Oh, and do you guys lock-stitch all of your non-adjustable splices?

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    Senior Member Mrprez's Avatar
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    Speer No Tangle does a good job.

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    Quote Originally Posted by RAW View Post
    ... rope that would be better for splicing and knotting?
    Any inexpensive coreless braided para cord will do... I have some flat green stuff that I like, but I am running out, and don't know where to get more.
    Quote Originally Posted by RAW View Post
    Oh, and do you guys lock-stitch all of your non-adjustable splices?
    That, or an overhand loop to make a hold-open eye, or a locked Brummel, or a piece of electrical tape...
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