ABR Ultra Sling

[ QUOTE ]
This thread has been amusing to say the least, now I will add some peanuts to the peanut gallery...I have tried whoopies and loopies, don't care for them...I have one loopie now for my other climber who fumbles with knots but does tie them OK, he likes it...me I am a plain ole cow hitch...timber hitch kinda guy...whatever floats one's boat..now Bix stop dumping on Bore's parade....before I gotta fix ya...let's behave

[/ QUOTE ]

Okay Swing. Bev don't care, he knows I'm just talking out of my [pick a different word].
 
Just watched the video, simple, quick and easy. Next time you need a tester let me Know Nick-oh and im still waiting on the call back from the bounce house thingy.lol
 
A basic question about loading a splice. Is it OK to choke a girth through the throat of a splice? It may work but it wouldn't be the best way to do it. Your still making me cringe Bix. Do you like Bixler better or Brian I don't know. I know this whole discussion is getting weird.

But really am I ruining an April Fool's buildup by being the fool or is this proper rope on rope contact. Simple question and no matter what you say I still don't like it. Sell me the concept.
 
[ QUOTE ]
Your still making me cringe Bix. Do you like Bixler better or Brian I don't know. I know this whole discussion is getting weird.


[/ QUOTE ]

I can't help it Bev, no preference, either one is fine.
cool.gif
Just don't call me a [pick a different word] [pick a different word] and we're good.
wink.gif
 
So...about the "Ultra Sling"? I have a concern about the design which I've been asking from the start of the thread. Someone want to cough up an answer? It just seemed fundamentally flawed. I'm guessing this has been discussed in the splicing section which I don't follow but what I'm seeing is a line under tension being forced onto a divided line and putting all it's friction onto a couple strands and causing wear. It might be too simple of a question due to my lack of splicing knowledge. It seems to me it has put a weak spot in the system that didn't need to be there.

I don't care if it passed the test it passed the test. But is it the "Ultra" sling? The name might be what gets me. If it was called the slug sling for groundies that can't tie a knot I'd think it was really cool.
 
I have answered your question multiple times. In the case of the Ultra Sling, there is no reason to be concerned. It is not a divided line. It is two strands of 3/4 Tenex. Our professional splicers have evaluated it from design through testing.
 
It is a series of brummels, however there is more too it, involving the equalization of eyes and the finish splice.

Maybe you should take the time to learn something about splicing, can I suggest some good resources you could read/buy?

Believe it or not there is some science behind the whole thing. Not just unfounded opinion.
 
I checked out a brummel video. "You take your twelve strand stick the fid through the center and have 6 strands on each side." That's what I mean by divided. Now bend the rope and put it under tension there's gonna be friction on a single strand on each side of the whatever it's called, insert.
 
Boreality - I had the same concerns, it seems weird to be loading the throat of the splice, creating friction 'inside' the rope where it is woven through.

I guess my main question would be if it were to somehow get cross loaded what would happen?

I do believe that they tested it in every manner they could think of. I've never had any issues with any of their gear, and wouldn't expect to in the future.
 
Not just that but a splice works by squeezing together two lines making it stronger than the rope itself by adding another cover. This Ultra Sling pushes the splice apart which may not weaken it on a couple uses but I'm thinking it would work the splice loose and the wear issues.

I'm just learning something I really have no interest in and giving Nick a hard time about these promo posts. You know how rule bending works. Next thing all the other suppliers are posting their latest useless crap and proclaiming it the best buy ever, better hurry limited supply 20% off spring sale specials. It's enough to ruin a forum if allowed to run rampant.
 
I went to work feeling kinda sick about messing with Nick. But a little pain now is better that a huge disaster later. Keep up the good work Nick but save the promos for some really innovative exciting stuff. Feeling better now.
 
Bevin, I do not claim to be a splicing expert by any means. A brummel is a rope passes though itself a few times. A LOCKing Brummel is a rope passing though it's self, and then though the tail.

From random knowledge acquisition a locking brummel will retain about 80% of the ropes strength. While burying the tail isn't necessary for strength of this splice, it does make it neat and tidy. Splices generally fail just up rope from the splice due to fiber distortion (I think). So since the rope in this configuration is essentially doubled along its entire length there would be an expectation of strength gain on the weak point of the splice.

I agree that FEELS like a red flag to load a locking brummel in that way. Nothing is buried so there is nothing to pull out, or rip the cover.. I'd like to see how it tested being pulled in 4 directions at the same time.

If this pans out and is every bit as strong as Nick and ABR say's it is (and I believe that it is) it could open up possibilities in other configurations even if it appears to be unconventional use. Imagine a line with an eye in the middle holding two rings. It could be used for some sort of hub and spoke pattern dynamic cabling??? Maybe uses as spider legs in rigging? I see potential beyond this application, which there are other slings/knots that do the same function.


Using a new configuration for a spliced anchor to some pretty brutal abuse when there are many other tried and true options, may not be where the shinning light is with this tool. Like I said it looks and feels weird, I wouldn't run a double braid splice loaded in two opposing directions. I would look at this rig closer, or make one to just see it. What I don't see is any convincing argument that this is better than any other option.
 
Self promotion here on TreeBuzz.com is always welcome and appreciated as long as the poster is a genuine member of the community. I have always disregarded posts from members who continuously only post to promote their products. Some make it 100% of their contribution to the forum, which is also welcomed so long as they are paying their "dues" in form of sponsorship.

My feelings on loading the Brummell side of a splice has always been that it is wrong. For example we often use the pintle hitch on the bucket truck to secure a porta-wrap for lowering, or a pulley for redirecting the chipper winch line. I reprehend crew members when they load the pulley or porta-wrap in a manner that loads the throat of the splice as opposed to removing the sling or correctly loading the splice.

Maybe I have been wrong all these years. I blame it on being improperly misinformed in the past, or was I...?
 
I have a couple of loopie slings, but I prefer tying a cow of timber hitch. So, the ABR sling isn't gonna weasel it's way into the gear box, and I have no dog in the fight.
Curious how the throat of that ABR splice was tested using a hydraulic puller to apply force against (instead of inline with) the Brummel. I dunno.
I seem to remember reading (somewhere; probably not on TB, sometime ago) some posts by Brion that indicated Brummel splices weaken a line considerably, and why/how they do so.
 
We aren't saying to start using existing sling configurations differently. The series of brummels in an ultra sling rely on each other and the series of 3 in way that a normal brummel eye splice doesn't. We haven't gone out and tested all the ways you can abuse all your other soft goods but we tested the crap out of this configuration and it works.

No concern, no reason to worry. How do I know? because the pro splicers/testers told me so.
 
By coincidence I made and tested exactly the same splice in 9mm tenex, for a rescue anchor. I wanted it this way to give the rescuer the fastest and most secure anchor. Exactly a tenex snake anchor! I was concerned about loading the splice and was comforted by my own testing. Good loading seems to relay on the lay of evenly buried legs otherwise the load will fall to one side of the lock and create a mechanical advantage that tries to prise itself apart. This is like no other tenex splice I have seen in terms of loading and Nick is right when he says it is complex. My own test results using a Rock Exotica enforcer, grcs and block -n-tackle put the splice under nearly 20kn of pressure, held for several minutes and repeated 3 more times. The fibres pulled on one side. I massaged it back. Our rescue slings will be getting 2 -3kn I imagine. It's got the green light from me for this application.
Bigger loads on bigger rope seems exponential. I'd use it I guess but seems like an excess of rope when you could nearly as easily tie a knot. I think I'll make a short one for one of my x-rings, for a crown anchor. Good stuff ABR !!
 
You must log in or register to reply here.

New threads New posts

Back
Top Bottom