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munkymadman

Twin rope snatching

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I saw one of reg’s videos with two pulleys two ropes and the seperate bollards for snatching. A 16mm line was snapped in the past. So could this be avoided by doubling up. Rope on rope is a no no, but if they’re running at the same speed can they both go off the same bollard. I’m assuming that would be a disaster. We have a couple of grcs’s and a number of flying capstans. Any configuration ideas that doesn’t involve buying a double bollard?

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I think running two ropes of one bollard is not a good idea. Much to much chance of the ropes rubbing against each other under load.

 

I have used two separate bollard type devices on the odd occasion I needed two ropes on the same section of wood and there are two bollard lowering devices available.

 

I have seen some massive pieces caught on a one pulley system. It's really important that with big loads the rope is allowed to run. 

 

It is also important to estimate the loads involved and not go mad!

 

 

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I’ve used two bollards a fair bit for doing large limbs or double rigging. But on a spar it would have to be identical otherwise it would favour one rope over the other. I like the M rig snatching idea. But I reckon your right that maybe a ring would be better than a pulley. I guess I’m considering those times when it gets low and fat without much room to let it run. 

Afraid I haven’t got the luxury of choosing which ropes the company buys. Hope your well too Carl. I’ve just arrived home :)

 

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I saw one of reg’s videos with two pulleys two ropes and the seperate bollards for snatching. A 16mm line was snapped in the past. So could this be avoided by doubling up. Rope on rope is a no no, but if they’re running at the same speed can they both go off the same bollard. I’m assuming that would be a disaster. We have a couple of grcs’s and a number of flying capstans. Any configuration ideas that doesn’t involve buying a double bollard?


Put a block on your piece you are rigging as well, this increases the rope in the system drastically and creates a 2-1 system, works really good especially on dodgy trees as it reduces shock loads.

Climbing arborist on YouTube has a good video about it.

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I saw one of reg’s videos with two pulleys two ropes and the seperate bollards for snatching. A 16mm line was snapped in the past. So could this be avoided by doubling up. Rope on rope is a no no, but if they’re running at the same speed can they both go off the same bollard. I’m assuming that would be a disaster. We have a couple of grcs’s and a number of flying capstans. Any configuration ideas that doesn’t involve buying a double bollard?
woah woh woaaaaahhhhh......you broke a 16 mm double braid lowering rope?? Jesus, that takes a chunk. Have you considered knocking them out a smidge smaller ??

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11 minutes ago, Treerover said:

woah woh woaaaaahhhhh......you broke a 16 mm double braid lowering rope?? Jesus, that takes a chunk. Have you considered knocking them out a smidge smaller ?? emoji12.png

Easier done than you imagine - a decent lump of beech & a numb groundie & your breaking shit. 

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