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In Reply to: RE: Paging Mr. Cowen.... posted by bcowen on January 02, 2017 at 16:33:32
Another handy tool for a DIY cable project is 3M Nexcare Transpore perforated PE medical tape that works very well as a cable outer diameter build-up material at the ends of a cable when terminating thin cables rather than use layers of heat shrink for the task. The Nexcare tape available at any drug store can be layered to the exact thickness required for securing an otherwise too small cable to fit snugly into various connector entry points, for set-screw or crimp-type strain relief mechanisms.Another important issue I forgot to mention is that the finished cable should be covered with Techflex sleeving, since the PTFE Teflon tape wrap jacket can be easily damaged if not protected by sleeving vs. what more durable cable jackets can provide.
Edits: 01/02/17Follow Ups:
Good to know, thanks.
Just sent an order in to Chris, but he's off to CES so it'll be another week before he can ship. But that will give me the time to listen to the Christmas present I bought myself (I couldn't put it on my Santa list for fear of guys in white uniforms appearing at the front door). :)
BTW, note the edited text about covering the DIY cable with Techflex sleeving in order to protect the PTFE Teflon tape wrap jacket.
The twist ratio a.k.a twist pitch or twist rate should appear at least as tight as the tightest twisted pair shown in the image of this Cat6a cable.
Received the wire from Chris. Hope to get time this afternoon to put it together. Question for 'ya: I have some 3/8" PTFE thin-wall heat shrink tube that looks to be just the right size (once shrunk) to fit tightly around the twisted pair. Thoughts on using it versus the teflon tape? Would be much easier, and if the main purpose of the teflon tape is to hold the wire twist together tightly, it would do an even better job at that. But not sure if there would be any sonic penalty....
Thanks!
Duster,
If the PTFE heat shrink tube is truly thin-wall and allows the cable to be fairly flexible, I think it could indeed be a good thing.
I'll be interested in how well it holds the wires firmly together, and if the tautness remains stable over the test of time.
Thin-wall polyolefin stretches too easily, but PTFE Teflon is a different animal.
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