If you tie a slip knot and pull with that, you can almost double your pull strength. Also, if you put your feet against the tree, you can like x1.5 it. So really, one person using a slip knot and a tree can totally tighten this line.
i use rap rings too.. the only knot i have is the one i use to tie off. there used to be a goo video of this on youtube, but i haven't been able to find it recently, i never have a problem tightening my system, but then again, i don't run my webbing under itself, eliminating the friction that it causes
forget using clove hitches, spend an extra eight bucks and anchor with rap rings (it adds length to the life of your webbing.) I've also found it better to put two biners on the anchor side, it redirects the force so you pull away.
To gain more MA...5:1.tie a slip knot as close to the friction point as you can, attach a biner. Attach another biner to the anchor. Run the webbing from the slip knot through the new biner on the anchor, back through the biner in the slip knot and then pull opposite
can i ask what type of line do you use? i've got 25mm mammut sling(climb spec) but i have difficulties getting a good tension when i'm alone. I think it's because of the stretching of the line. and i;m a lightweight too, also 120 lbs. thanks happy new year
I used to do the thing where you stand on one side of the tree, put your leg on it, and pull, but have since upgraded to a come-along I stole from my dad.
However, the primitive way still works.
I use 1" tubular webbing from REI.
and set it up like the video "How to set up a slackline" posted by clarkgrubb. It is in the related videos.
and use some basic 2" webbing loops as slings. Works pretty well.
thinly veiled propaganda for commercial setups...?
4:1 carabiner pulley system works fine for shorter lines. if you're ready to walk a 50ft line, then sure, a commercial system works with less effort.
However, with a clever set-up using a 4:1 + another 3:1 or 4:1 on the free end of the line, works well (even solo) for the longer lines. $0 + time + effort OR $150 commercial setup...your choice.
Disclaimer: I work for a company that sells primitive setups, as well as all other types including ratchets and pulleys.
The title page says it all though, it's designed as a humorus look at common mistakes. It also promotes actual thinking about the mechanical advantage that is needed and the issues of friction in the system. People throw around 3:1,4:1,5:1,9:1 ratios but often don't have a clue what the actual efficency is of their system. In many cases, higher ratios don't more power.
I did a 4:1 primitive using the pulling force of 3 strong men. We used round static climbing rope and we walked it :) It was about 12 meters long and the height was no more than 90 cm. If interested from pics/films, give me a sign :)
hi, I use this PRIMITIVE :D system to set up a 150 footer with a help of just 1 next friend..
of course you can add a multiplyer to boost your pulling force.. i'ts true that this system has a lot of unwanted friction, but what's perfect, hmm? :)
ok, i dont mean to start a huge discussion on tensioning systems, lets leave that for the forums.
Due to lack of information, or maybe lenguage, many slackers, i included, learn trough YouTube how to rig or set up their first slackline.
Primitive system DOES work, and its not typical "running out of strengh". I tension with my girlfriend, a 30 footer, with 4:1, and it works great, even for jumping.
Its my opinion that TYPICAL its not the right word, but is only my though.
They are of course light. Unfortunately most instructions recommend tri-loading carabiners in a semi-dangerous way. This can pop the gate open or break the nose off the biner.
Unfortunately I know of nearly a dozen instances where carabiners have broke on a slackline. The only ratchet failures have all been too low rated for. All hardware should be atleast 2,200 lbs strong or more.
That is crazy Joe; I have been climbing for years and have never had a carabiner break. Do you remember the make of them so I can be sure not to get them?
going through my answer again sounds a little arrogant. half of it was the lenguage (i live in argentina, down down south) and the other half was my own personal considerations on primitive tensioning methods.
primitive setup is not the best setup to a solo session on a 40footer line, but its the best sistem for begginers and middle user.
My impression of the vid is that primitive setup is not proper, and thats not fully truth. it needs practice and a few mistakes, but is simple, fast and cheap
Basically all I'm doing is pointing out that you should expect to grunt a bit and have extra people with you using this technique. I've had people assert that 1 person using this technique can tighten longer lines than pulleys, ratchets or whatever. It just isn't physically possible as the friction reduces your advantage to around 1.7:1. The math makes it impossible for a solo setup with a pre-load of much even for a rather strong person.
Pardon my typo.. 1.25:1 not 1.7. Using the other methods that incorporate more turns increases the friction in the system to even higher level, thus negating much of the theoretical advantage.
What this guy doesnt seems to know is that if the tension is not right, i can always move the tensioning system away from the 2nd anchor, in order to get more line to tense. You can see it in the final part, when it writes "ok lets tie it off" it only has a couple of inches of tensioning system. If you make it a little further you can get more tension. I always tension myself or with 2 friends, 30footer and longer and we never had that kind of problem. Ratchet fans?
If you can always pull it so the carabiners are together, great. In this instance given the two people pulling it wasn't happening.
Besides, this video was more to point out the common issues new people run into. If you also notice it shows how to correct those issues. The only real limitations of the system is that it relies on knots and has very limited mechanical advantage. Using other techniques you can actually rig it knotless as well.
Perhaps you are using military spec webbing? It has a greater stretch than climbing spec, or try other flat, non-tubular webbings. Type-A or Type-B euro.
I simply don't get it. It should have worked right, based in the basic phisic, mathematic and engineering knowledge. What went wrong? But it's so funny. Hillarious.
Webbing over carabiners produce more friction than most people account for. If that was using pulleys or a ratchet it would have easily been set. As I noted in the slide, a theoretical 3:1 mechanical advantage only produced a 1.25:1 actual mechanical advantage. A 4:1 is only approximately 1.5:1 which is hard to set. In contrast good pulleys would offer twice the efficency and a ratchet would offer a boost of up to 13:1 mechanical advantage.
We didn't fake any of it, we seriously pulled as hard as we could and none of the problems were staged. It just worked out comically.
I learned to walk the line using that technique but since then I have developed better equipment to make things faster and easier to rig for lines as long as 150 feet or more.
The popular concensus is yes, it will help. It won't make you a stronger climber (as in grip strength) but makes you a smoother climber and helps you rely less on strength and more on technique. It helps you move more precise, move your center of gravity to stay in balance, balances contraction and protraction muscle coordination and core strength. I worked with a study at Brigham Young University (Oahu, HI) that confirmed the above.
Aweful concept. Rap rings are the way to go. That way you never need to cut the webbing after you can't get that clove hitch out.
Metal2Death666 5 months ago
If you tie a slip knot and pull with that, you can almost double your pull strength. Also, if you put your feet against the tree, you can like x1.5 it. So really, one person using a slip knot and a tree can totally tighten this line.
BSCCodeOfThievery 2 years ago
Also, you have to add another pass to the line side to be able to push on the tree, and doing this gives you more MA.
BSCCodeOfThievery 2 years ago
i use rap rings too.. the only knot i have is the one i use to tie off. there used to be a goo video of this on youtube, but i haven't been able to find it recently, i never have a problem tightening my system, but then again, i don't run my webbing under itself, eliminating the friction that it causes
seanpatrickrice 2 years ago
forget using clove hitches, spend an extra eight bucks and anchor with rap rings (it adds length to the life of your webbing.) I've also found it better to put two biners on the anchor side, it redirects the force so you pull away.
To gain more MA...5:1.tie a slip knot as close to the friction point as you can, attach a biner. Attach another biner to the anchor. Run the webbing from the slip knot through the new biner on the anchor, back through the biner in the slip knot and then pull opposite
joecrawford815 2 years ago
I use a a 4:1 setup for a 30-40 foot line and don't have any problems at all.... I only weigh 120 lbs. and I set it up by myself.
alixjm 2 years ago
can i ask what type of line do you use? i've got 25mm mammut sling(climb spec) but i have difficulties getting a good tension when i'm alone. I think it's because of the stretching of the line. and i;m a lightweight too, also 120 lbs. thanks happy new year
dennis1802 2 years ago
Comment removed
alixjm 2 years ago
I used to do the thing where you stand on one side of the tree, put your leg on it, and pull, but have since upgraded to a come-along I stole from my dad.
However, the primitive way still works.
I use 1" tubular webbing from REI.
and set it up like the video "How to set up a slackline" posted by clarkgrubb. It is in the related videos.
and use some basic 2" webbing loops as slings. Works pretty well.
alixjm 2 years ago
thinly veiled propaganda for commercial setups...?
4:1 carabiner pulley system works fine for shorter lines. if you're ready to walk a 50ft line, then sure, a commercial system works with less effort.
However, with a clever set-up using a 4:1 + another 3:1 or 4:1 on the free end of the line, works well (even solo) for the longer lines. $0 + time + effort OR $150 commercial setup...your choice.
ORClimber 3 years ago
Disclaimer: I work for a company that sells primitive setups, as well as all other types including ratchets and pulleys.
The title page says it all though, it's designed as a humorus look at common mistakes. It also promotes actual thinking about the mechanical advantage that is needed and the issues of friction in the system. People throw around 3:1,4:1,5:1,9:1 ratios but often don't have a clue what the actual efficency is of their system. In many cases, higher ratios don't more power.
slacklinejoe 2 years ago
Hi there,
I did a 4:1 primitive using the pulling force of 3 strong men. We used round static climbing rope and we walked it :) It was about 12 meters long and the height was no more than 90 cm. If interested from pics/films, give me a sign :)
lazaraza 3 years ago
hi, I use this PRIMITIVE :D system to set up a 150 footer with a help of just 1 next friend..
of course you can add a multiplyer to boost your pulling force.. i'ts true that this system has a lot of unwanted friction, but what's perfect, hmm? :)
Kwjeton 3 years ago
Never trust someone trying to sell you a ratchet for an honest video on a primitive setup.
tjcubin 3 years ago
ok, i dont mean to start a huge discussion on tensioning systems, lets leave that for the forums.
Due to lack of information, or maybe lenguage, many slackers, i included, learn trough YouTube how to rig or set up their first slackline.
Primitive system DOES work, and its not typical "running out of strengh". I tension with my girlfriend, a 30 footer, with 4:1, and it works great, even for jumping.
Its my opinion that TYPICAL its not the right word, but is only my though.
keep slackin
hvanhemp 3 years ago
They are of course light. Unfortunately most instructions recommend tri-loading carabiners in a semi-dangerous way. This can pop the gate open or break the nose off the biner.
slacklinejoe 3 years ago
Unfortunately I know of nearly a dozen instances where carabiners have broke on a slackline. The only ratchet failures have all been too low rated for. All hardware should be atleast 2,200 lbs strong or more.
slacklinejoe 3 years ago
That is crazy Joe; I have been climbing for years and have never had a carabiner break. Do you remember the make of them so I can be sure not to get them?
kg6ejp 3 years ago
light to carry with, and safe in many points. (i´ve seen ratchets blowing up).
hvanhemp 3 years ago
going through my answer again sounds a little arrogant. half of it was the lenguage (i live in argentina, down down south) and the other half was my own personal considerations on primitive tensioning methods.
primitive setup is not the best setup to a solo session on a 40footer line, but its the best sistem for begginers and middle user.
My impression of the vid is that primitive setup is not proper, and thats not fully truth. it needs practice and a few mistakes, but is simple, fast and cheap
hvanhemp 3 years ago
Basically all I'm doing is pointing out that you should expect to grunt a bit and have extra people with you using this technique. I've had people assert that 1 person using this technique can tighten longer lines than pulleys, ratchets or whatever. It just isn't physically possible as the friction reduces your advantage to around 1.7:1. The math makes it impossible for a solo setup with a pre-load of much even for a rather strong person.
slacklinejoe 3 years ago
Pardon my typo.. 1.25:1 not 1.7. Using the other methods that incorporate more turns increases the friction in the system to even higher level, thus negating much of the theoretical advantage.
slacklinejoe 3 years ago
What this guy doesnt seems to know is that if the tension is not right, i can always move the tensioning system away from the 2nd anchor, in order to get more line to tense. You can see it in the final part, when it writes "ok lets tie it off" it only has a couple of inches of tensioning system. If you make it a little further you can get more tension. I always tension myself or with 2 friends, 30footer and longer and we never had that kind of problem. Ratchet fans?
hvanhemp 3 years ago
If you can always pull it so the carabiners are together, great. In this instance given the two people pulling it wasn't happening.
Besides, this video was more to point out the common issues new people run into. If you also notice it shows how to correct those issues. The only real limitations of the system is that it relies on knots and has very limited mechanical advantage. Using other techniques you can actually rig it knotless as well.
slacklinejoe 3 years ago
how to add mechanical advantage to your system:
1: Build 3rd anchor
2: Put your loose end through carabiner on 3rd anchor.
3: tie clove hitch (or similar) and add a carabiner just after your friction system.
4: Put loose end through carabiner.
5: you have now added precisely 8.3 metric-fuck-tons of mechanical advantage to your system. enjoy
robinavery 4 years ago
Perhaps you are using military spec webbing? It has a greater stretch than climbing spec, or try other flat, non-tubular webbings. Type-A or Type-B euro.
robinavery 4 years ago
I agree with Joe Zorro. Wow. Youve made laugh so hard I think I won't be able to stop.
ImreVerekas 4 years ago
So comical. You gotta be kidding with us.
222genio222 4 years ago
Very Instrutif und Divertit. Danke.
elisa2hoerscht 4 years ago
I simply don't get it. It should have worked right, based in the basic phisic, mathematic and engineering knowledge. What went wrong? But it's so funny. Hillarious.
barbara83couto 4 years ago
Good for you to have a sister that helps you like that. Or maybe a girlfriend? She's very beautiful.
barbara83couto 4 years ago
My helper is my production manager.
slacklinejoe 4 years ago
Webbing over carabiners produce more friction than most people account for. If that was using pulleys or a ratchet it would have easily been set. As I noted in the slide, a theoretical 3:1 mechanical advantage only produced a 1.25:1 actual mechanical advantage. A 4:1 is only approximately 1.5:1 which is hard to set. In contrast good pulleys would offer twice the efficency and a ratchet would offer a boost of up to 13:1 mechanical advantage.
slacklinejoe 4 years ago
Have you made it all wrong on purpose? It is so funny. It can't be difficult like this, right? You're only joking. Your video is very good to watch.
alexanderhrpr 4 years ago
We didn't fake any of it, we seriously pulled as hard as we could and none of the problems were staged. It just worked out comically.
I learned to walk the line using that technique but since then I have developed better equipment to make things faster and easier to rig for lines as long as 150 feet or more.
slacklinejoe 4 years ago
ma che bel video per fare ridere. bravo!
petruccio2 4 years ago
tres amusante. géniale.
JeanJacquesLouis 4 years ago
and u ask for a sense of humor? you're the one that should have a sense of pity for our stomachs. They begin to hurt after so many laughs!
JoeElZorro 4 years ago
What a comic video. You're an artist. Genious.
cinthiadiana 4 years ago
como è divertenti questo tuo video.
annamariagioia 4 years ago
HAHAHAHAHA.
gordkrauss 4 years ago
Gee. I've never laughed so much in my life. Brilliant!
penelolopez 4 years ago
I hope you'll aprove my video-responses. You're awesome.
andrewbluemarine 4 years ago
Wow. So funny. I've got to do it myself.
fefefefernando 4 years ago
Modifico mio comento. Io ho 25 anni. Sarai questo di slackline impossibile per me andhe?
Mi pare meraviglioso.
Midify my coment. It is me also interested on sladk. I am 25. Is there time?
giugliogaettano 4 years ago
I learned at 20 years old. I have taught as old as 87. You can certainly learn.
slacklinejoe 4 years ago
I'm 21. I'm beggining my rock-climbings only now. Will this slackline thing be usefull for me?
ferdinandbrown 4 years ago
The popular concensus is yes, it will help. It won't make you a stronger climber (as in grip strength) but makes you a smoother climber and helps you rely less on strength and more on technique. It helps you move more precise, move your center of gravity to stay in balance, balances contraction and protraction muscle coordination and core strength. I worked with a study at Brigham Young University (Oahu, HI) that confirmed the above.
slacklinejoe 4 years ago
Formidable!!!!!
genevievechabrol 4 years ago