Splicing help for bailout and ultra tech

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If you are just putting an eye on long length of it the Class II double braid instructions will show you where and how to bury the cover. If you are making something smaller (ie. eye to eye lanyard) you probably won't have enough room to do a proper Class II splice and therefore will need to use an alternate method. Of those alternate methods you can bury the cover normally using a Class I splice, but with the naked eye splice I don't think burying the cover is an option. (Incidentally since Ultratech is a Class II rope I would recommend using the Class II splice on it wherever possible)

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There it is sorry about that. Completely missed what he had said above.
 
I am still confused on the Ultra tech splice. The class 2 dbl braid splice was easy, and looks good and feels strong. I much prefer this to the traditional 12 strand splice I have done on it in the past. Are you all saying the 12 strand splice is stronger? I would think the dblbraid splice would be, why am I thinking this?
 
For arborists, Jman was right that the shorter tail allowed by a locked brummell in the core is key for us to have good eye-eye slings. However, I don't think the polyester cover of Ultratech is conducive to good eye-eye slings in the first place. Doing a locked brummel on BOTH eyes is a little tricky, but can be done on request when people ask.

When I make a EYE-eye footlock prusik (big prusik eye on one side, little carabiner eye on the other) I've found it to be quite easy to bury the cover on one of the eyes. I do a covered eye with buried tail on the prusik eye and then an exposed eye for the carabiner eye. Burying the cover on BOTH eyes is a little tricky when they both have locked brummels, but can be done on request when people ask.

When burying the cover, I run the splice half way home, then bury the cover while the rope is still malleable, then finish running the splice home. Attached is a pic of the last one I did for a treebuzzer, Tophopper. He's had it for over a year, but I don't know how much he uses it. However, I know that the throat of the splice wasn't super stiff when I mailed it out to him. There's room to work with in this rope.

For bailout, I've spliced it like beeline. Exposed eye with locking brummel on both sides, cover whipped down over the base of the eye. It is a major pain to splice. I will be having a few broke tested in the coming weeks. I've climbed on mine a few times. I want to see what the core can handle, though. Samson hasn't tested the rope in this manner (or so they've reported to me). Maybe they'll approve this type of splice if we can show it works?

For now, I encourage people NOT to climb on spliced bailout. Samson does not have an "approved" splice for the rope.

love
nick
 

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I think they are both equally strong but the 12 strand works better in an eye and eye prussik.

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I thought I would comment on this. A Class II double braid splice (aka Core-to-core splice) will be stronger for a couple reasons. It has a longer tail with a much more gradual taper than a locking brummel has. This allows the rope to spread the load over more strands.

Not being locked, the core-to-core can minutely adjust under extreme tension. The rope likes this. A locked brummel is just that- locked. There is little shifting that the splice can do under extreme tension. This lessens the ultimate breaking strength of the rope.

A locked brummel is more secure, though. A straight bury, unstitched, can be pulled out in a split second. A locked brummel requires a little bit of work to dismantle.

love
nick
 
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I made what we call a "Dutch Hat" splice, in which the cover that goes around the eye is a separate piece. It's easier to run things home.

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Brion- I've used, and seen many a tree guy use tubular webbing and chafe protection in the eye of a splice. Is this the idea with the Dutch Hat?

We look forward to seeing the pics!

love
nick
 
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For bailout, I've spliced it like beeline. Exposed eye with locking brummel on both sides, cover whipped down over the base of the eye. It is a major pain to splice. I will be having a few broke tested in the coming weeks. I've climbed on mine a few times. I want to see what the core can handle, though. Samson hasn't tested the rope in this manner (or so they've reported to me). Maybe they'll approve this type of splice if we can show it works?

For now, I encourage people NOT to climb on spliced bailout. Samson does not have an "approved" splice for the rope

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Thanks Nick. I agree totally now about the bury for a shorter eye n eye. I used it for this application. (multiple pic posts sorry) and will now try it as a fl prussik.
 

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This is an eye n eye I have used to tend my micro pulley on a work positioning lanyard. It is a locking brummel. I have since deceided to use either the original cover or leftover velocity in the eye instead of shrink wrap. Please go into more detail about running the cover up, or taking the cover off and putting it back on. Are you saying take the cover completely off, splicing, and pulling it back on or putting the cover (a piece of it) on the eye during the splice? Pics pls.
 

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Is that blue and purple stuff just shrink wrap, or is it that special tape stuff that bonds to itself (not just an adhesive coating?).

If you taper the last 1/4" or so of the cover tail before you whip & shrink-wrap it, you'll end up with a smoother splice that is less prone to chafe.

love
nick
 
What am I using? I bury the cover!

If you're doing the whip & heat-shrink tube, I'd just cut the last 1/2 of the cover tail at a 45* angle, just so avoid that visible bump in the shrink-tube. Mostly aestetic, but in the long run (if that comes in to play- which it usually doesn't when it comes to arborist ropes!) chafing could be an issue at the bump, so minimizing the bump also minimizes chafing, too.

love
nick
 
Hello,
I finally have some pictures of a splice for bailout, and will be posting them as soon as I find out how to. Meanwhile, what rope did Pancake use for his core-to-core splice? It didn't look at all like bailout. I ask because in my experience a core-to-core isn't too practicable in this stuff, which is probably why Samson calls it unspliceable.
Speaking of Samson, they'll shortly be destruction-testing a sample of the splice I used. Details and photo's soon.
Fair leads,
Brion Toss
 
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as soon as I find out how to.

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send it to me brion, i'll post it for you.

or..save it to your desktop, write a post and check the box at the bottom that says "preview my post or attach a file". should be self-explanatory from there i think.

can't wait!!
k.
 
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