Wire splice for awg 28 and smaller wires - Page 1
Forum section: electronics / projects

author: fabiodl
author_rank: Frequent Contributor
timestamp: November 23, 2014, 05:13:53 pm
content: I would like to know if there exist anything to connect three small wires (awg 28 and smaller) in a "T" joint. I wonder if contacts which can be crimped in three different points or similar things exist.I have a very small place and things like thishttp://www.adafruit.com/product/1495are way too big.I currently solder the wires together, but I wonder if there is a more robust solution

author: GreyWoolfe
author_rank: Unknown
timestamp: November 23, 2014, 11:40:06 pm
content: If those connectors are too large, I would stick with soldering. I use them for telephone wiring and they work great without being too large. Do they have to be in a 'T' shape? You can do 2 on 1 side and 1 on the other and use a Westinghouse splice and cover with heat shrink tubing.

author: kizzap
author_rank: Unknown
timestamp: November 24, 2014, 02:52:12 am
content: can you not simply use something like these?:http://www.amazonsupply.com/wire-crimp-connectors-blue-yellow/dp/B002T1FLPM

author: Monkeh
author_rank: Super Contributor
timestamp: November 24, 2014, 03:03:58 am
content: Quote from: kizzap on November 24, 2014, 02:52:12 am... on 28AWG? Are you kidding?

author: richcj10
author_rank: Unknown
timestamp: November 24, 2014, 04:13:54 am
content: I am a EE on a racing team. When "T" conections are needed, striping the wire and soldering is the best with a little piece of heat shrink.

author: kizzap
author_rank: Unknown
timestamp: November 24, 2014, 04:28:24 am
content: Quote from: Monkeh on November 24, 2014, 03:03:58 amIt was an idea. And holy hell! What do you know!? something like this idea that should work!?:http://www.digikey.com.au/product-detail/en/321198/A09010-ND/255782

author: Monkeh
author_rank: Super Contributor
timestamp: November 24, 2014, 05:34:50 am
content: Quote from: kizzap on November 24, 2014, 04:28:24 amSure, a purpose made crimp with a specific tool will work fine. A generic insulated one, not so much.And hey, they're only 50 cents a pop with a $700 tool!

author: kizzap
author_rank: Unknown
timestamp: November 24, 2014, 07:22:25 am
content: Quote from: Monkeh on November 24, 2014, 05:34:50 amAre you beyond kidding me now? any $20 pair of pliers will be capable of crimping them. Of course the manufacturer is going to recommend the fucking $700 tool, because a marketing snob isn't going to know that you can use a generic tool for that.And the non-insulated thing? heard of this thing called heatshrink? Use your fucking head.

author: Monkeh
author_rank: Super Contributor
timestamp: November 24, 2014, 01:53:18 pm
content: Quote from: kizzap on November 24, 2014, 07:22:25 amI don't think bodging it with a pair of pliers is quite the "more robust solution" the OP was asking for.QuoteThat wasn't remotely my point, actually, the substantial difference in tooling was.Are you going to continue spewing profanities and being offensive, or are you going to useyourhead?

author: kizzap
author_rank: Unknown
timestamp: November 24, 2014, 03:19:49 pm
content: Quote from: Monkeh on November 24, 2014, 01:53:18 pmWell I see you spewing forth a plethora of options, so I yield to your insurmountable level of knowledge on this problem. Silly peasant me trying to offer an idea.(I don't see how using a decent set of pliers is "bodgeing" btw)Quote from: Monkeh on November 24, 2014, 01:53:18 pmI will spew all the fucking profanities I want, it's a free world. I fail to see how I have been offensive. All I have been doing is trying to offer some kind of idea to the OPs post (which I also apologise, because we are hi-jacking this thread), which you have just decided to tear apart for no good reason as far as I can tell. To me, the most robust solution here would be splicing and soldering the cables together, which the OP is trying to avoid.So Monkeh, I would put this forth to you: either stop being a negative nelly, and either a) contribute something helpful (like a possible solution!) for the OP, or just b) leave. Quite easy.

author: Monkeh
author_rank: Super Contributor
timestamp: November 24, 2014, 03:36:35 pm
content: Quote from: kizzap on November 24, 2014, 03:19:49 pmFar be it from me to say something when I see what I consider a bad idea being suggested. Obviously I should just leave well alone!And if you can't see how using a pair of pliers instead of an appropriate crimping jaw is bodging, well..QuoteThe good reason is that it's a bad idea to start throwing random inappropriate tools at the problem!QuoteI agree. Solder with appropriate strain relief of the conductors is the best way if there's no room for a suitable connector.QuoteI suppose giving my opinion on proposed options is not helpful in your eyes. If I had an off-the-shelf ultra-compact affordable and robust solution, I would propose it. Seeing as I don't, I am trying to spare the OP the grief down the road of a bad 'crimp' done by a pair of pliers!

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: November 24, 2014, 04:25:41 pm
content: Quote from: kizzap on November 24, 2014, 03:19:49 pmThen you'll have to live with the occasional criticism and dry remark, eh? It's a free world for other people too.Isn't it dangerous to have such thin skin in Australia?

author: fabiodl
author_rank: Frequent Contributor
timestamp: November 26, 2014, 12:00:12 pm
content: Thank you to all the posters. I will try to get a couple of these connectors and see what can be done with normal tools and possibly a little bit of solder. I should get something more robust to vibrations and cable bending than solder alone

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: November 26, 2014, 12:17:24 pm
content: Quote from: kizzap on November 24, 2014, 03:19:49 pmBecause it gives no control over crimp pressure or depth, and so you have no idea if the crimp is within design limits for a long-term reliable connection.

author: Simon
author_rank: Unknown
timestamp: November 26, 2014, 12:37:23 pm
content: Quote from: kizzap on November 24, 2014, 03:19:49 pmActually you won't! - you've been warned.

author: Simon
author_rank: Unknown
timestamp: November 26, 2014, 06:53:28 pm
content: Quote from: Simon on November 26, 2014, 12:37:23 pmOn second thoughts, maybe we should play it your way, tell you what, just because I can, according to your logic I too should not have to care who I hurt so I've banned you for a month. Because it's a free world like you say and I'm annoyed at your attitude and offensive or not I've decided to stop believing in free speech and I'm using my powers to shut you up for a month.Maybe they were wrong, maybe being a moderator can actually be fun, after all it's a free world, I too can do as I damn well please according to your logic so for the sake of argument we will do it your way....

author: c4757p
author_rank: Super Contributor
timestamp: November 26, 2014, 08:30:56 pm
content: You sound sane, logical, measured, and not at all foaming at the mouth. Must be the giant red text - that always does it...

author: pickle9000
author_rank: Super Contributor
timestamp: November 26, 2014, 09:22:58 pm
content: I use these but solder as well. Mainly to provide a bump so the heatshrink stays in place.Jewelers Silver plated copper crimp tubeshttp://www.ebay.ca/itm/Wholesale-500-Pcs-Silver-Plated-Copper-Tube-Crimp-End-Beads-1-5mm-/390986630647?pt=LH_DefaultDomain_0&hash=item5b089e85f7Jewelers crimp tool]http://www.ebay.ca/itm/Beading-Bead-Crimping-Plier-DIY-Jewelers-Tool-Crimper-Press-Plier-13cm-NEW-/321490561590?pt=LH_DefaultDomain_2&hash=item4ada54aa36]Jewelers crimp toolhttp://www.ebay.ca/itm/Beading-Bead-Crimping-Plier-DIY-Jewelers-Tool-Crimper-Press-Plier-13cm-NEW-/321490561590?pt=LH_DefaultDomain_2&hash=item4ada54aa36

author: amiq
author_rank: Regular Contributor
timestamp: November 26, 2014, 10:06:32 pm
content: Quote from: Simon on November 26, 2014, 06:53:28 pmGood call.