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Unread 12-01-2017, 11:20
Mentor_Rick Mentor_Rick is offline
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Re: Rope - Eye Splice

Quote:
Originally Posted by s_forbes View Post
If you are using a tubular type of rope (Spectra and Dyneema fall into this category and are awesome, you should go buy some right now!) here is a way to form a loop without needing any whipping of the end of the line. Very clean and very strong. https://www.youtube.com/watch?v=d0B6tYTVHVM

I would advise caution with Spectra and dyneema blends, both of which are just Ultra-high-molecular-weight polyethylene. Both spectra and dyneema while incredibly strong have 2 large drawbacks that must be dealt with intelligently. The first is that it is incredibly slippery and does not hold knots well. That is why in most climbing applications UHMW-PE is used primarily in sewn runners. If knots are used they must have sufficient tails tied into the knot as most knots will slip under load.

The second on more trouble some problem is that spectra and dyneema dont react well to any kind of shock loading. A 120lb load dropped from as few as 2 feet can cause the webbing to fail as it has no ability to stretch. If you are concerned in the least with any possibly shock loading of your line. A static nylon rope in 8-12 mm range would probably suit you best.

I can link you to drop tower tests from black diamond showing how spectra fails if your interested.


( In addition to a Robot nerd I am a rock climber, hence knowing more than you probably wanted to know about rope and knots lol )
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