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Rigging a slackline on tnuts
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mrpotter


Jan 25, 2007, 11:35 AM
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Rigging a slackline on tnuts
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My home wall has two oposing walls about 20' apart and I want to put a slackline up. If I put 3 correctly threaded eyebolts through the tnuts on each side, and then equalized them, do you thinks this is strong enough?


wanlessrm


Jan 25, 2007, 12:17 PM
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Re: [mrpotter] Rigging a slackline on tnuts [In reply to]
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NO.

I have had friends do this and rip out the t-nuts.
Get some flat iron to but behind your wall and put the bolts through this. A couple two foot sections should do.
Also make sure the force wouldn't pull the wall off the wall.


jp_sucks


Jan 25, 2007, 12:19 PM
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Re: [mrpotter] Rigging a slackline on tnuts [In reply to]
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Not a chance. The forces that a slackline generate (almost 180 degrees between anchors) are incredible and the t-nuts will rip for sure.

It may be possible to put the eyebolts through and then attach a large washer behind the tnut and a screw to hold it in place. You would need to use a fairly large washer to make this work (to spread the force over a wide enough piece of the wall).

Having said that, it's still pretty risky and probably not the best way to set up the slackline.


reg


Jan 25, 2007, 12:20 PM
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Re: [mrpotter] Rigging a slackline on tnuts [In reply to]
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i wish i could speak to the forces necessary to make a line taught - i don't know but it's high - thousands of pounds. your gonna rip you wall off the wall. i bet someone here will come up with something to help ya.


mrpotter


Jan 25, 2007, 12:45 PM
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Re: [reg] Rigging a slackline on tnuts [In reply to]
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alright, thats what I though
I set it up anyway, just to see, and I could sit on it just fine, but if I started bouncing a little, the whole wall started creekingShocked
I dont think im gonna do itSmile


sactownclimber


Jan 25, 2007, 12:54 PM
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Re: [reg] Rigging a slackline on tnuts [In reply to]
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http://will.is-a-geek.org/...lacklineAnalysis.pdf


Partner coldclimb


Jan 25, 2007, 9:48 PM
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Re: [sactownclimber] Rigging a slackline on tnuts [In reply to]
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Yeah, not only would the T-nuts rip, you'd be likely to pull down the wall. Good luck working on an alternative!


Partner slacklinejoe


Jan 26, 2007, 8:14 AM
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Re: [mrpotter] Rigging a slackline on tnuts [In reply to]
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mrpotter wrote:
My home wall has two oposing walls about 20' apart and I want to put a slackline up. If I put 3 correctly threaded eyebolts through the tnuts on each side, and then equalized them, do you thinks this is strong enough?

A local gym decided to put up a slackline that way, and they now have several patched holes in their climbing wall. They even used bracing and it still ripped through.

The average 20 foot slackline still produces less than 1,000 lbs except for really, really tight lines with big moves but that's way more than T-nuts in plywood should be used for.

For a quick and dirty way of estimating slackline load, I have a force calculator on my site at: http://www.slacklineexpress.com/force.htm


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