Homemade PSU Cables

benji182

benji182

benji182

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Just a quick question regarding making your own cables.

I was going to splice and solder this weekend (if the remaining cable from my order arrives) the cables where two become one from the PSU into the 24 pin motherboard power cable.

But then I came across these.


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Anyone have any experience with these or recommend them? Certainly looks tidy and should fit under the cable braiding.
 
You've not made it clear what that picture actually is, but...

If it's the "heat shrink solder joiner" things, I'd steer clear. Firstly no good solder joint will be made at temperatures where heatshrink shrinks but doesn't melt. Secondly even if it works, I wouldn't trust the current and thermal capacity of that join under stress. Depending on which cables are joined (e.g. a 12V 18A supply Vs a 5v sense wire) there may be a lot of current carried.

Honestly, custom cables and custom sleeving are a lot of work, don't naff it up with something unreliable. I don't know what the convention is with those split cables, they bug me to be honest. It's a bad design choice IMO. But I'd suggest doubling up the cables into the crimp ends if possible.
 
Ah my bad - yeah I saw that MDPC-X had them listed whilst I was browsing some of the different colour braids a while ago and was more curious than anything else.

Yeah I remember braiding my old PSU ages back in 2013 (see sig) and was just thinking if there was a newer/easier way of doing things since then.

You made a good point about the heat aspect that I didn't really think of, although the guide on them does say to set heatgun to 300-400°C which is what most soldering irons would be at anyway and that doesn't 'melt' the heatshrink.
 
Nothing wrong with solder and heatshrink if you can do it neatly! You could give those heaty shrinky tubes a try and see how they feel after use too. Do they have a stated current rating?
 
MDPC-X Splicing Solder-Shrink doesn't mention any power specs. Also not really a fan of the bullet butt crimps due to size and sleeving going over it.

I think I'll give them a miss and just splice the old fashioned way. Time to dust off the old soldering iron
 
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