Tree failure, while I was climbing it.

Clever - I've not seen this idea floated before. Do you have any idea of how those magnets age? I.e., what effects are there over time on the force they're exerting, from being set up like this?

MikePowers321 said:
This is a little breakaway lanyard I had put together for super sketchy trees. I had to flip one of the neodynemium magnets and countersink for them to attract properly. Breakaway at about 170lbs. Only use when tied into another healthy tree and clean up stubs if you ever swing back. The goal is to never have these magnets seperate for the rest of their life, and hopefully I never have to use them to be honest. They are strong so you can pretty much climb how you normally do without fear of separation. Still, must use great caution and be safe.
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LordFarkwad said:
Clever - I've not seen this idea floated before. Do you have any idea of how those magnets age? I.e., what effects are there over time on the force they're exerting, from being set up like this?
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Good questions. From the ebay link:

PERMANENT STRENGTH - Neodymium is a kind of rare earth metal, it's suitable for making permanent & powerful magnets. This fishing magnet has permanent magnetism, it will be the same powerful even decades after.

I'd say just test before use. I hope never to use these : )
 
Do you think it might help to keep the two magnets from sliding apart, some kind of tube, or tape to prevent it.
 
That is a great idea, but 170 is not enough. I'd rather need 3-400 pounds to separate them. That much won't squish you, but it's enough to really need some effort to break free.
I would bet I unintentionally put 200+ on my lanyard every few days for a second until I notice that it is stuck somewhere.
I know it's only on one side, but the force isn't evenly distributed most of the time.
 
Brocky said:
Do you think it might help to keep the two magnets from sliding apart, some kind of tube, or tape to prevent it.
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Very difficult to slide apart as is, but if you look closely at the pictures of the magnets separated, you'll see that the head of one screw snaps perfectly into the countersunk portion of the other, pretty much locking them in place
 
SomethingWitty said:
That is a great idea, but 170 is not enough. I'd rather need 3-400 pounds to separate them. That much won't squish you, but it's enough to really need some effort to break free.
I would bet I unintentionally put 200+ on my lanyard every few days for a second until I notice that it is stuck somewhere.
I know it's only on one side, but the force isn't evenly distributed most of the time.
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Thats why I bought 350lb magnets originally, but after flipping them to attract, they lost a little holding power. However, after doing some testing, at 170, the earth magnets work nicely. You really have to slam into your lanyard with some serious force to get them to release. And if your climbing that sketchy of a tree, youre probably climbing very softly as it is. But a stronger magnet connection wouldn't be bad either.

I'll try to do a short video at some point to help visualize
 
With only one end of the lanyard detaching, there is a risk it could get stuck on a tight crotch, or whip around and smack you when it gets released.
 
A splice instead of knot would be better but not a guarantee that it can’t get wedged or wrap around something after detaching.
A magnet on both sides would help, but only one might come loose causing a possibly of a high velocity missile. Putting half of the magnet on a separate lanyard attached to the tree would be one option.
3CD55FA0-597B-40C8-8AB0-6153D709BD83.webp
That’s one lanyard, is another needed when advancing the TIP on the suspect tree?
 
Fivepoints said:
Why couldn't one just use magnets on both ends of the lanyard so the whole lanyard would go away from the climber with the failed tree portion. Nothing at all to get caught at that point.
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It wouldn’t work like that. Inevitably one side would see slightly higher forces and part first leaving the other side still attached and free to whip.
 
I think this magnet idea has solved the breakaway lanyard debate. One thought which would make it more secure is if one of the cups was a larger OD and a little deeper. This way one magnet would slip into a tube contacting the other. It wouldn’t need to go very deep to avoid any hangups when the do need to release
 
evo said:
It wouldn’t work like that. Inevitably one side would see slightly higher forces and part first leaving the other side still attached and free to whip.
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I think he is addressing the idea of a magnet getting caught in a crotch after the magnets have already released due to a tree failure...similar to tying a knot onto their lanyard snaps which can snag in tight crotches at times.

Not something I would be too worried about myself but I see the issue.
 
In this video you can see Reg's solution to a breakaway, at least if I am seeing it correctly, clipping into an accessory loop on his harness.

 
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