Skeleton Lanyard using 10mm shackles

[tuttle]

I bought some 10mm shackles to have a mess about with, after a few tries I arrived at this very simple concept.

I used it for the first time today, it was very reliable and did not fail in anyway.

The wire gate was just my option to keep it skeletal.

 

[macswan]

The shackle looks perfect for that application. Will have to bastardize that. What is that interesting looking prussik cordage.

 

[Tom Dunlap]

Where does 'skeletal' come from? It seems like you're using the shackle as a slack tender. This setup with the ISC swivel biner does that with fewer pieces.

 

[macswan]

I've always liked the look of that lanyard too, maybe I'll bastardize it instead. Now I am torn

 

[tuttle]

My prusik is a dyneema core with technora/polyester cover similar to armor prus in 7mm.

Tom, Not sure about your prusik at 5mm?? the idea is good, just a bit to bulky IMO, The good thing about the shackle is it moves and swivels enough from every angle, plus its very slick. I have used an ISC swivel in the past, but found it was too tight and sometimes jammed.

The skeletal idea is to make a lanyard with less and less, my big loop is used as an attachment, a fixing point and looping on cut branches etc.

 

[macswan]

My prusik is a dyneema core with technora/polyester cover similar to armor prus in 7mm.

Yes, but who makes it? across the pond I guess, but a guy can still keep an eye out. I like the look of it.

 

[tuttle]

I make them, the rope was a random piece sent to via a rope ends supplier, only had a few meters of it...all gone now

 

[GregManning]

I bought some 10mm shackles to have a mess about with, after a few tries I arrived at this very simple concept.
I used it for the first time today, it was very reliable and did not fail in anyway.
The wire gate was just my option to keep it skeletal.

Looks like the cordage eyes could get crushed & damaged when pinched repeatedly between the ‘biner & shackle pin ?

 

[tuttle]

No, the eyes are dyneema and locked brummels, with a neat bury of the cover, they have 'dip it whip it' on them too.

I do check them repeatedly, it is a great simple setup, I have put my pulleys in the sin bin

 

[GregManning]

Perhaps my concern was not clear.
Dyneema is certainly a very strong tensile material.

My concern was the “hertzian contact forces” generated when 2 metal items with dis-similar radii
meet.
There is “theoretically” no significant area to spread out the pressure; it is “line-to-line contact.
The compressive forces are enormous.
Think a pair of scissors. Or better yet a pair of wire cutters.

The dipping material may help; but it may also hide accumulating damage.

All the best !

 

[tuttle]

Thanks, I understand your reference points, I have been in lots of industries and used hundreds of tools, so I understand the pressures etc.

tbh, the carabiner is hardly touching them, its a very thin one.

 

[Mowerr]

The weight of that shackle has to be pretty close if not more than some of the micro pulleys on the market id think. Maybe a boat snap would be lighter or tying a hitch directly to your d ring with the rope through the d ring so your d is the tender