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Topic Date User
Prusik knot idea 27-Jan-2020 At 6:09:54 PM IdratherbeclimbingM9
On 24-Jan-2020 mistergribble wrote:
>Have you ever used a Bachmann knot ?
>They're a lot easier to move up and down a rope that a trad prussik, otherwise
>Mister Petzl can sell you any number of his renown aluminium devices

Adding to MrG's post...
There are lots of similar; plus variations on the themes that aren't listed in the link below!

On 24-Jan-2020 TimP wrote:
>Never tried the Bachmann MrG, it looks interesting, will give it a go.
>M9 I'm thinking mainly abseil backup with the 3-wrap Prusik.

Variation on the Bachmann theme that I use for that purpose, is to not include the krab inside the friction loops, ie simply hold a finger in the loop and spin the krab around the standing part of the rope then clip the krab back into the loop where your finger is.

Both have pro's and con's with basically the krab being able to loosen tension easily after the friction hitch load is released (good for ascending!), though for abseiling I like the fast spin-it-around-the-rope method, because the abseil brake hand holds the loops loosely stopping ropeburn but not inhibiting it locking-on if let go!

>Speaking of newfangled devices on the course I saw a Tibloc being used
>as progress capture in a hauling system: rotating over the rope as it passed
>through an oval crab at the anchor. I hadn't seen that before, pretty neat.

I know they have also been used as running 'belays' in solo climbing... not that I'd recommend this due to possible rope sheath damage in a significant fall.

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