Amsteel tether

[Nugget]

Think I should further clarify a few things.

1. My primary tether and lineman's rope are oplux. Lol
2. I like to experiment and DIY on the off season like most of you on this forum.
3. This post is not about using regular 1/4" amsteel. But, full burry amsteel (amsteel inside of amsteel)
4. My intention is to create conversation and gain knowledge from others with experience using full burry amsteel.
5. This rope has a 22kn breaking strength without the burry. What is it with the burry?
6. Testing at ground level with a full burry continuous loop friction hitch seems to work. However, I do not recommend use at heights until an expert on ropes approves it.

 

[Stevey220]

I'm impressed with the way it's performed so far. I wonder how moisture will affect the prusic.

I hate hunting in the rain but sometimes can't be helped. I love hunting in the snow.

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[Nugget]

I'm impressed with the way it's performed so far. I wonder how moisture will affect the prusic.

I hate hunting in the rain but sometimes can't be helped. I love hunting in the snow.

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Thinking the same thing.

 

[Bwhana]

Do you worry at all about heat in this application? If it’s an adjustable bridge (still not for me ) I could make the case that the prussic has less to travel on & could expect to see less failure..... as a tether the prussic could possibly melt if not grabbing, given the wrong circumstances. That’s what bothers me about this application out of spec. I know it’s not rappelling but could you generate enough heat to comprise the amsteel prussic in a few feet?

There is so little movement that could happen on mine that heat from friction is a non-concern. I am only talking about the utilibridge use only and never would use it as an actual tether. Sorry, I was taking the comment at the bridge level, not full tether.

 

[Apex7]

This thread seems to have migrated from Amsteel tether to Amsteel bridge. The saddle manufacturer Tethryd OKs it for a bridge. With the tether you are on your own.

I was referring to the prusik on amsteel . It doesn't move at all. I wouldn't use amsteel for my tether.

 

[Wirrex]

In my opinion, to say something can't be used in a certain way simply because the manufacturer doesn't say it can be is a complete contradiction to the essence of DIY. If that were the case then we should never use a sit-drag or fleece saddle. What about the scooter or LW handclimber platforms? Amsteel was also never intended to be used as a rope mod on climbing sticks. Sometimes DIY exists for the purpose of repurposing something it wasn't originally intended to be.

As for the topic on hand, by no means an I going to claim this is completely safe and everyone must do it. I, on the other hand, do feel comfortable playing with it for the purpose of research to see if this is a viable option for ME.

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I have done most of those DIY things and backed them up by a proven life line and RCH.

 

[chi0082]

In your original post you said you have 20 feet of Amsteel for tether. Are you planning on rappeling with this? Friction hitches for rappeling are mostly made of heat resistant rope and are used with a device which reduces friction further to enable the hitch to be manageable. Amsteel has a VERY low temperature at which it becomes unstable. A sliding friction hitch made of Amsteel would be dangerous, IMHO. For a fixed hitch, OK, I guess.
I was going to try SRT with 3/16" Amsteel but would have to upclimb and downclimb with toothed ascenders. I tried it in a Madrock Safeguard and it would not hold. I didn't have anything buried. I am scared to try it. Maybe you should be very scared. There are safer alternatives.

There's no use trying to convince the geniuses on here. This thread should've been locked early due to so much misinformation. Someone lurking in here might actually think it's a good idea to try an amsteel tether because some geniuses on here think full burying it makes it ok to do so. Just give them a thumbs up and head nod, and oh what's the saying...."give them enough rope and they'll hang themselves." lol.

 

[boyne bowhunter]

There's no use trying to convince the geniuses on here. This thread should've been locked early due to so much misinformation. Someone lurking in here might actually think it's a good idea to try an amsteel tether because some geniuses on here think full burying it makes it ok to do so. Just give them a thumbs up and head nod, and oh what's the saying...."give them enough rope and they'll hang themselves." lol.

I've read through the entire thread and, to me anyway, the general impression is that most everyone agrees (myself included) that using amsteel as a tether is most likely a bad idea and has expressed that concern. Also, in my opinion, part of the allure of this forum is for others to share ideas and get input on them, be those ideas good or bad. Ultimately its up to each one of us to weigh the risks and make informed decisions for ourselves. Discussions like this can help educate on those risks. As always I would recommend extensive personal testing of any out of spec. use of materials at low level.

For the most part the discussion here has been civil with no personal attacks. At this point I don't see a reason to close this thread.

 

[boyne bowhunter]

Here is my personal weigh in on this. Most often choices like this are based on a risk/benefit analysis.

In this case I personally don't see the benefit for going to Amsteel over a traditional rated climbing rope. There's very little weight advantage. In fact, based on the quoted numbers I've seen for weight per 100', ten feet of climb rated Oplux (2.8lbs/100', .28lbs) weighs less than 20 feet of 1/4' amsteel blue (1.6lbs/100', .32lbs). Even if you choose to use 7/16" climb rated rope (6lbs/100', .6lbs) you're still only talking about an only .3lb increase.

As far as packability, its going to be really hard to beat Oplux given the fact that the amsteel has to be doubled up with the bury. Still, given that I can get my current tether and linesman ropes (both 7/16") along with biners and links into a Syshauler size bag, I'm not seeing enough benefit to outweigh the risk to me personally.

 

[Stevey220]

Here is my personal weigh in on this. Most often choices like this are based on a risk/benefit analysis.

In this case I personally don't see the benefit for going to Amsteel over a traditional rated climbing rope. There's very little weight advantage. In fact, based on the quoted numbers I've seen for weight per 100', ten feet of climb rated Oplux (2.8lbs/100', .28lbs) weighs less than 20 feet of 1/4' amsteel blue (1.6lbs/100', .32lbs). Even if you choose to use 7/16" climb rated rope (6lbs/100', .6lbs) you're still only talking about an only .3lb increase.

As far as packability, its going to be really hard to beat Oplux given the fact that the amsteel has to be doubled up with the bury. Still, given that I can get my current tether and linesman ropes (both 7/16") along with biners and links into a Syshauler size bag, I'm not seeing enough benefit to outweigh the risk to me personally.

I agree.

I tinkered with it since I had time and materials on hand. I just wanted to see if it could be done. I can now say yes it can be done but I'm not an expert on ropes so I can't speak for the safety aspect. Also compared to Oplux, now that I've had a chance to play with both, can't say there are any benefits.

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