Sewn Loop Patterns on webbing - what is the strongest pattern to sew loops on your slacklines?
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- čas přidán 21. 07. 2024
- Over 50 samples in the last 8 months on SlackSnap we have explored different sewing patterns on slackline webbing so we get the highest strength out of something that isn't redundant when we highline. If you put in a thick enough thread in often enough, it will hold but watch what we learn in this episode.
Thank you to J.P Sutjak, Joel Loxenbagelman, James Hogarth, and SailRite / sailrite1 for helping us learn about sewing patterns.
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Would be interesting to test different needles ie gauge and sharpness. Sharpness might effect strength as sharp needles will pierce any materials like individual cords in webbing threads and blunter needles will push webbing threads aside without doing as much damage. Would be interesting to see if that altered where the failure point of the webbing propagates
great experiments and camera work ... much appreciated and super helpful!
You should do this with a regular heavy duty sewing machine from walmart with the heavy nylon thread just too see how it would hold up,Im curious lol :)
Those machines aren’t actually heavy duty, it’s just a marketing name. You can get a Chinese leather shoe patcher for $100 and it will way out perform those plastic machines
@pantac4493 I've shown up till like 1/8 in thickness with them no problem but I'll look into the Chinese machine you're talking about thank you
@@577buttfan if you get one that sews out of the box like mine, it’s one of the best values for industrial level tasks, comparable machines in ability are many hundreds more, some in the thousands
@@pantac4493can you give specifics on what machine you're talking about?
Loved this video. I sew this stuff on an old K6(walking foot). This answered many questions for me. Thank you kindly☺️
I love how you locked the 2" webbing into the Van Beest with a huge steel tube, those were my park "line lockers" for years, albeit on 1".
So nobody is gonna talk about the non climbing silicone hanging on the board? Looks pretty advanced.
W stitchings and bar tacks as a combo, used in ballooning.
You should try the Raed Slackline sewn loop, its a box with a W kind of, its supposed to hold much more than a bartek
Got any tips, or examples, on how to attach straps to a 'drag bag' (tool bag)?
Sailrite's 1 inch Poly Tubular webbing W pattern was a faulty sample. No way it should fail at the bar tack at far lower strain than the similar diamond pattern. This indicates the bar tack was taking most of the load, and therefore had been overstitched/tensioned.
What an awesome shirt!!
thanks! they are for sale if you want one. Link in description.
Dewd I would love too send you some stuff,i have a cheap walmart machine and use the upholstery line not sure what size the line is but it says ART AD64 H8 and T26 on the spool,I think it holds about 15 pounds.
What's the black rubber thing on the wall beneath the hammer and torque wrench?
thanks so much
Question: in the examples where the webbing broke at the first bar tac, does that mean the bar tac weakened the webbing? If so, why would a bar tac be a recommended addition to the W or Diamond patterns?
This is interesting,. I would have thought that bar tacks would bot hold as well due to the number of stitches in a small area. It seems to me that that would damage the webbing. I wonder if it's strengeth comes from the webbing being able to stretch between the bars? Stitches like W, diamond, etc would put a lot of strain on the stitching itself as the webbing tries to stretch. My only issue is that I have an oler maching that does not do zig zag, and the one I have that does do zig zag isn't made for this kind of heavy duty work. How would I get a sample to you to test?
All my flying gear is bar tacked,I trust it with my life no doubt!!
How can we send you samples to test?
3:32 i really feel that manufactures should be tieing a basic over hand knot in to the middle of their test peice , and call thst their mbs...
Hi,I am just curious to know what kind of webbing/strap is used in making of harness,nylon or polyester.As I know nylon stretches more than polyster.Does this stretchability help to reduce the impact of any fall during Climbing ?
I have no idea what percentage of force impact due to a fall transfers to harness from rope,this should be a relevant factor about harness testing
Both are used, it makes absolutely no difference though.
Quite a bit, almost all fall protection systems incorporate some form of shock absorption
Many of the breaks look like a chain reaction - one part fails first and then the next and so on. Maybe the threads should be a bit loser, so that that multiple stitched could load-balance better?
I'm looking to make belts to hold up pants, and I hate the xbox360 stitch... From the sound of it, one bartack should be strong enough for the job...
Hey I would like a 100 ft custom would you be able to make and I can pay you.
Sew... Can I resling my cams on my sewing machine?
I was just filming an episode on that topic. Water knots in 1 inch tubular webbing seem to work just fine even when subjected to a 6mm bend radius. -Bobby
@@HowNOT2 That would be great to watch, I have reslung my cams with 6 & 7mm cord with double fisherman's knots but is it quite bulky. So to stitch slings would be useful. Manufacturers these days won't sling older cams. Thanks.
Lol @ Joel Loxenbagelman lmao. Sweet name
I'm busting up at the name too. Had to look it up to make sure it wasn't real!
I want to make my own fall deceleration break away webbing. Probably a single 39 inch loop sewn peeling back like a banana, unlike here. I want to make a 1 meter to 2 meter shock absorber on a 2 meter loop cache on a 5600 lb rope that is pulled together 1 meter by the break away webbing. Obviously, single use.
I am afraid to use my wife's sewing machine for fear of breaking it. However, I do not want to sew more than 2 layers of webbing.
I think the formula is each breaking point must support the weight and the excess breaking force per inch is basically the stopping force and determines the stopping distance. I calculate the interval fall acceleration between 1 inch break aways is insignificant.
I have been testing 2 meter drops and different stopping strategies. A minimum of three 1/2 inch bungees per 40 lb seems to cushion the stop, however this is bulky and expensive.
A 550 lb 8 inch porch spring seems to permanently stretch 6 inches each 40 lb drop, which I calculated like 970 lb of force. I bet this spring might stretch 24 inches and absorb 3600 lb but I might need to test 8 inch 80 lb trampoline springs with 40 lb to have any confidence.
I tried amazing goop and jb weld epoxy. Amazing goop offers only 17 lb resistance and the JB weld offered about 5 lb on the nylon webbing. Half inch heavy duty staples offered 20 lb, 23 lb, or 27 lb break away resistance (banana peel style).. However, stapling in line and pulling, as in this video offered more resistance than I could pull down.
50 lb break away string does seem to break close to its rated strength. However keeping it from slipping down the webbing is too impractical
Grommets just weakened the 900 lb webbing and it tore the webbing at 65 lb. Glue did nothing. Trying knots every inch was difficult in webbing and took 5 inches of webbing per double knot to keep the breakaway string from slipping.
I ordered 1000 lb paracord, which should be easier to tie knots every inch or every cm to keep the breakaway string from slipping. I will find the right number of break away strings at 40 lb and mock up to human weight. I probably will amazing goop or gutter seal the break away seal for rot resistance and cover the shock with a sleeve or fabric.
However, I need to steal my wife's sewing machine, hit Walmart for the toughest, heaviest thread.
If either sewing the webbing or break away threads every cm or inch on the 1000 lb paracord do not work, I probably will buy 10 porch springs to supplement the bungee I already purchased, after testing a weaker trampoline spring.
I am not going to invest $400 every year for a once in a 100 year fall catch system. Plus, I learn so much more and understand the system, figuring things out myself. I learn what to watch out for.
Like, compromised webbing loosing 15 times the rated strength. I am also now a full believer in the need for 5600 lb system after dropping just 40 lb 6 foot and seeing it break all kinds of things, like two 400 lb rated bungee cords, with equal support of the load, in a single drop.
I also learned the breaking strength of discount store and closeout ropes and line, with surprising results. Like one rope that was rated 1200 lb, could not handle 140 lb: it stretched from 10 feet to 20 feet, and then broke. Line I thought was 150 lb was only 100 lb.
Hopefully, the Amazon 5400 lb climbing rope holds its rated weight, although I will implement protocol never to possibly fall more than a few inches onto the fall protection. Of course, who follows protocol these days?
Don't try to use Walmart thread. $16 bought me a big spool (2100 yards) of UV protection V92 thread.
@@fryloc359 it has been nearly a year since I did all of the drop tests, math, and research. What I remember is, yes, buy good webbing, and serious thread. Test, test test. I chose 2x wide, since I could get the strength each sewn break.
I bought a winch, a serious scale, learned the math, and did scale drop tests. I also took notes and video recorded on a tripod, as much as I could. I just lack editing interest. It was fun.
I learned about the Kong Kisa, and bought a dozen of those. But I didn't really trust them. And quickly learned in drop tests about water and dirt quick effects on friction on the rope and plate. I also bought a Kong Slyde, but never got around to testing that, scientifically. Kong needs to sell the rope that is friction calibrated (wet, dry, dirty or clean) with Kong kisa, since 3rd party rope will stop humans at forces greater than 1800 foot lbs.
I remember, be very careful about the webbing and the breaking thread strength. I was surprised about how strong my thread had to be, and how poorly performing some of the webbing was.
Also, I did breaking tests on various string and rope. Most didn't come close to the breaking point they listed. Including Kevlar string.
I regularly tie my properly placed ladders I use for work with string I can't manually break with all my might. I would have thought that it was at least 150 lb cord, however in my testing (winch and scale) , I could easy break the cord at 30 lbs. The cord is probably okay for the purpose only because the initial force of a kicking ladder or windshield wipering ladder is a few ounces, which the 30 lb cord can hold before things get out of control. The advantage of it, as compared with 300 lb or 1000 lb cord to tie ladders is its cheapness and ubiquitous nature of 100 dollars worth of cheaper cord. However, even for paracord to tie things down, you need mindful of the reality of the probable low breaking strength, unless proven otherwise.
Ryan is the Man! I deeply admire him for doing his real world testing and learning the Newton physics, rather than just blind trust in corporations and their lobbyists and their proxies.