Trickline webbing break tested - including damaged webbing

[@HowNOT2]

Check out our new store! hownot2.store/

[@tubelator]

I dont even climb or do any slacklining but you guys provide so many security for people that practice this sport, you should be at 500k subs!

[@cluerip]

I don't high line but the science pulls me in. I do climb so sometimes the videos are relevant to me. For the most part the amount of work you put in to testing safety and educating people on safety I really appreciate and enjoy. Your work is appreciated!

[@phil1606]

Thanks for the good work! That knife of yours with the break off blade is still the scariest thing in any video! Excited to see the Linescale get maxed out and the hydraulic ram magically reappear...

[@JoshyLook18]

Look up the "notch effect". A rapid change in diameter (like a cut) can cause a massive increase in the forces. So the strands near the cut will see higher foces than the ones on the other side. As soon as the first strand breaks the next one sees an even higher force and you get a domino effect.

[@bensmith3304]

Beat me to it.

[@jarodlojeck5150]

I was going to compare it to the tearing a telephone book trick; similar premise.

[@lionknives3]

I just love and appreciate your guys work! Thank you so much for all that stuff! Greetings from Austria!

[@williambloom350]

This is like the opposite of the hydraulic press channel. Try pulling apart something like a bowling ball-- without destroying your house lol

[@emans4seam]

I would have been curious about multiple cuts/knicks along one/both sides. My friends have a double ratchet trick line that’s a few years old that is showing it’s age.

[@billjohnson69]

A piece of plexiglass with a GoPro lens glued or bolted in place, this way you can replace the lens if it gets nicked or otherwise marred by gear flying and hitting it. We have created something like this to be able to videotape into our laser cutter while its cutting. Feel free to email me at [e-mail] and I can give you more info. We are just over in Sonoma Co and would be happy to make one and install it on SlackSnap for free as we have watched all your videos (and strangely enough, neither my wife or I slack line or high line, we just like the science!)

[@yetiDHrider]

Hey Ryan thank you for everything you putting, im learning a lot from you and increasing the safety when i slackline! Altough its not related to this video, if i dont have acess to amsteel whoopie slings, could i use dynamic rope to backup the sliding x in a highline (or other option)? If yes what Knot Should i use on order to keep it a tight and that Wont reduce to much the breaking strength?

[@tomsalerno1064]

You could place a piece of polycarbonate at a 45° angle with the open side against the wall. Then put the cameras on the wall side so they can still have an unobstructed view of the thing you are breaking while you stand on the side where the polycarbonate meets the metal sides.

[@gruanger]

(Terminology excuse, not sure if I explained what I am thinking correctly.)Damn, this one has me thinking. It is like the line is way to wide for its safety. Like they could put in 2 more vertical (stitching) lines through the webbing and it would probably hugely increase the safety. Weirdly the vertical stitching is done on the edges which seems to be a huge issue for every little knick. I would be curious to see a test with webbing variations. 4 total vertical lines(2 edge, 2 inside), 3 vertical lines (2 edges, 1 centered). I assume they don't make these variations, but I am so very curious because of your testing here.

[@S_Breaux]

My theory for why the cut webbing was so much weaker: When you pull on the full width of the webbing, the side of the weblock that is pulling against the cut portion has less resistance. So the force of the pull is going to move disproportionately to the cut side of the webbing, meaning the weave fibers on the cut side are going to be taking higher force and not distribute the force throughout all the strands. So the strands that are taking the force aren’t as strong by themselves and start to break. This just cascades greater and greater as strands break. If you were to cut the entire 1/2 inch off one side of the webbing leaving you 1.5 inch webbing, it would be the strength of 1.5 inch webbing because the force would be pulled evenly.

[@JasperJanssen]

In most of the strap, the load will divide across the whole strap. Now if at the cut you look at the two halves of the strap - one half has one half the load, across one half the strap. The other half has half the load, across only one quarter of the strap. That whole cut part’s section of the force lands on the strand at the edge, basically.

[@Alygoola]

Nice

[@keislerautomation184]

The ultimate strength tests are fairly well suited for highline, but unfortunately are none conclusive for trickline. It's worth noting that trickline webbing pertains to the realm of fatigue loading. The correct way to preform these tests would be record the amount of load present while trick lining and match that amount with your setup in a cycle load pattern (obviously not possible with your current set up). I'm new to slacklining and love the content- keep it up guys!!

[@christopherstawisky8537]

You guys could use a Plexiglas shield (like a police shield) to protect the camera person. I used to use something like this (www.evike.com/products/34722/) to film paintball games. Of course, paintballs and little plastic BBs are one thing, flying carabiner shrapnel is another...

[@armedbear529]

They don’t worry about safety ratios because safety isn’t rad.

[@chrissonnenschein6634]

"It was pretty rad!" ie: Super Fun Enough.

[@MrEh5]

Last one didn't fail at the cut.

[@Syngeman]

😀🥰

[@canopyjunkie]

for the algorithm!

[@MRLASER1231]

USE MIRRORS TO GET THE SHOT