Soft Shackles - Make Your Own - Toyota FJ Cruiser Forum
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post #1 of 64 (permalink) Old 01-25-2017, 10:07 AM Thread Starter
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Soft Shackles - Make Your Own

Well I've been researching soft shackles and the various methods of manufacture for a while and in doing so I've come across some interesting articles. Initially I thought I'd leave them to the experts though, being that they are 'mission critical' but spurred on by another member I thought I'd give them a go.

@FatJohnson asked for a thread so here it is. Though it is more sharing my discoveries that made it easier for me that I thought might help anyone else thinking of trying.

The first article I recommend is here:
A comparison of Soft Shackle methods | Slack Science

It gives some interesting info and set me on the road to which version I was going to make.


Then check this out:
Stronger Soft Shackle | How to tie the Stronger Soft Shackle | Splicing Knots

This was the main guide I used. But I did get a bit lost.

Then found this which helped a lot.

You only need the sequence from 1:12 to 1:39 approx. This gives you a really easy guide to the first part, the Wall Knot.

From here I return to the animated knots page and used slides 12 (the point that you've tied the Wall Knot) to slide 16.



That's all the info that I worked from, and a rough guide about the length of rope required. Now I'll share some things that helped me get my head around it and to make two identical and well tied shackles (attempt 3 and 4) of decent length with no wastage.

This is what I ended up with
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post #2 of 64 (permalink) Old 01-25-2017, 10:22 AM Thread Starter
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Re: Soft Shackles - Make Your Own

So here's the info I worked out as I went along:

Rope length: 150cm is required to make a reasonable, approx 3" diameter finished loop with 8mm diameter rope.

With the rope folded in two mark a distance of 70cm from one end. This is the point that you will use to make the loop. Thread the other end through the rope at this point. This distance will give you an equal pair of loops when it is tightened.

Next with the two ends together measure 39cm from the ends and tape the two strands together. This is the 'base' of the knot.

I then found it really useful to thread a strand of wool (or anything) into one strand so I could identify the two parts. This makes tightening up the knot much easier and can be pulled out at the end.

You can do this without any tools but a fid makes it easier.

Once you have tied the Wall Knot (first part) then pull it up so you have enough end lengths to work with but you need to leave enough slack to feed the ends through as you tie the Crown knot.

Feeding the ends down though the knot should be fairly self evident of the route if you have tied it right. The ends should end up in line with the main part of the shackle below the knot. Once tied you can work it tight bit by bit.

Then remove the tape that was used to fasten the two strands together at the start. You can then do a final tightening from below.

All that is left to do now is feed the ends into the rope (tuck splice) and taper them for a neat (and stronger) finish.
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post #3 of 64 (permalink) Old 01-25-2017, 10:24 AM Thread Starter
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Re: Soft Shackles - Make Your Own

They get easier and better with practice.

Here are the first two I made, original on the right, note the imperfect knot and the different final lengths even though exactly the same amount of rope used.
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post #4 of 64 (permalink) Old 01-25-2017, 10:29 AM Thread Starter
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Re: Soft Shackles - Make Your Own

And here is number 3 added in. No 1 at the top, 3 at the bottom.

The length is greater than 2, whilst having longer tails (better taper) than number 1. The measurements given above from number 3 allowed me to make an exact clone in number 4.

Note that these were all made using the same 150cm of rope.
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Last edited by ZerosFJ; 01-25-2017 at 01:27 PM. Reason: Additional info
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post #5 of 64 (permalink) Old 01-25-2017, 10:31 AM Thread Starter
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Re: Soft Shackles - Make Your Own

Finally two identical shackles:
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post #6 of 64 (permalink) Old 01-25-2017, 10:52 AM
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Re: Soft Shackles - Make Your Own

You are a good man!Thank-you for posting this!


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post #7 of 64 (permalink) Old 01-25-2017, 01:12 PM
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Re: Soft Shackles - Make Your Own

I love soft shackles and now that you can make your own


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post #8 of 64 (permalink) Old 01-25-2017, 01:18 PM
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Re: Soft Shackles - Make Your Own

How do you know what your load rating or working load limits are or calculated?

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post #9 of 64 (permalink) Old 01-25-2017, 01:52 PM Thread Starter
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Re: Soft Shackles - Make Your Own

Working from the documented data gives an estimated rating. I'll put one on a strain gauge when I get a chance and measure the breaking strain.

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post #10 of 64 (permalink) Old 01-25-2017, 02:15 PM
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Re: Soft Shackles - Make Your Own

Quote:
Zero'sFJ previously said: View Post
Working from the documented data gives an estimated rating. I'll put one on a strain gauge when I get a chance and measure the breaking strain.
What are you estimating?

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