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mrtristan
Jun 24, 2004, 10:07 AM
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Registered: Jun 21, 2002
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Hey
I've been playing around with various slackline setups and have decided that I really like this one. (Ignore the gate of the biner on the right; it was only temporarily open)
http://img78.photobucket.com/...2/slacklinesetup.jpg
I can get it set up plenty tight just by myself, and it stays tight. I really like it, especiall when compared to the 2 biner system. Just thought I'd share...
-Tristan
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coldclimb
Jun 24, 2004, 11:42 PM
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Registered: Jan 14, 2002
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Same thing I've finally settled on. I like it a lot too. :)
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caughtinside
Jun 25, 2004, 12:33 AM
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Hmm, I've only set up a couple slacklines, but we did the 2 biner method.
Does the method pictured self lock, or do you need to tie the end off?
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coldclimb
Jun 25, 2004, 5:19 AM
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In reply to: Hmm, I've only set up a couple slacklines, but we did the 2 biner method. Does the method pictured self lock, or do you need to tie the end off?
Need to tie it off. I have mine on a tree, so I walk the end of the line around the tree while keeping tension, then wrap it around the rabbit runner a few times and tie it off with a slipknot. Gives it plenty of friction so it doesn't slip, like a few other methods I tried.
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veganclimbr
Jun 25, 2004, 9:21 AM
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Ive try'd this method a few times but i find theirs tons of resistance which makes it extremely hard to tighten. Any ideas what im doing wrong?
Also if you or anyone else could add some more set up pictures that would be really helpful :wink:
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kinkcrazy
Jun 25, 2004, 1:08 PM
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Registered: Feb 16, 2004
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Very similar to my setup. If you run the webing over the last biner rather than under, then thread it back under the webbing that goes thru the 3rd biner, it will lock itself off. in the end you will be pulling the opposite direction to get tension.
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corpse
Jun 25, 2004, 1:57 PM
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Registered: Jan 17, 2003
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I also use the same biner setup, although, I think I'm a wuss, cuz I can't tighten it enuf for my own use.. My line is ~ 30 ft long. My latest method, create the pulley system like normal, and attach the pulling side to my car and tighten it up. My car doesn't have an emergency brake, so thats one reason I still use the pulley setup, plus for every few inches I drive, it tightens only 1 inch, so it's harder to over tighten.
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mrtristan
Jun 25, 2004, 1:58 PM
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Registered: Jun 21, 2002
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Yeah, I can post more pics, no problem. But what exactly do you want them of?
Tristan
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watchme
Jun 25, 2004, 2:42 PM
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Registered: Jun 26, 2003
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I use the same kind of setup, just with ovals (seems easier to deal with than other 'biners)
I don't know why people buy the pulleys and all that stuff. A bunch of webbing and a few old 'biners works just fine.
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corpse
Jun 25, 2004, 3:15 PM
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I use plain ol ovals too, by pulley system, I just meant the x:1 system using the biners. Even with a 5:1 ish system, I still can't get it down tight enough by myself.. Of course, I try to take it easy so I don't throw out my back (easy to do)..
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coldclimb
Jun 25, 2004, 6:18 PM
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In reply to: Ive try'd this method a few times but i find theirs tons of resistance which makes it extremely hard to tighten. Any ideas what im doing wrong? Also if you or anyone else could add some more set up pictures that would be really helpful :wink:
When I was redoing mine the other day I had this problem. You might check to make sure the clove hitch isn't smashing the two biners together so tight that they clamp the line. It took some adjusting to get mine right, but when I did it worked fine. Here's my pic I uploaded some time back.
http://www.rockclimbing.com/...p.cgi?Detailed=30232
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gregl
Jul 14, 2004, 5:38 PM
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Registered: Jun 18, 2004
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Call me retarded, but I dont' get it. I have never tried this set up, so if its a just try it and its obvious, then I'll figure it out. I see the anchor (red), I see how the biners are used as pulleies, but I don't get the clove hitch at the end near the line itself... do you tie that, and then run the webbing through the biner/pulley system? thanks for helping the mentally handicapped...
-greg
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gregl
Jul 15, 2004, 3:41 PM
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Registered: Jun 18, 2004
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Never mind. I get it now... clove hitch it (easy knot to untie), then the pully system winches it down. Wow. Never underestimate the power of stupidity.
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korporal
Jul 15, 2004, 3:51 PM
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Registered: Jun 2, 2004
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Does anybody know the mechanical advantage of this set-up?
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tarzan420
Jul 15, 2004, 4:17 PM
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Registered: Jun 19, 2002
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I think its (ideal) mechanical advantage is 4:1, but the friction makes the advantage drop significantly.
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slackdaddy
Jul 15, 2004, 11:59 PM
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Registered: Mar 15, 2004
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I agree with tarzan420 that this is a 4:1 but this system has a huge amont of friction. Every time I have tried this, it seems the extra drag of one inch on oval biners overcomes the extra advantage of this system compared to the regular 2:1 , (that many mistake as a 3:1). Maybe the shape of the biners would explain the different results since I've used ovals.
The slack-jack(TM) uses this same idea but the nylon runs over rollers, it has another layer of mechanical advantage, (6:1) and has a easy-release self-locking brake.
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