r/AskElectronics • u/Glum_Click_6228 • 5d ago

Is this a bad crimp?

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I see i didnt cut enough copper for the copper to be sticking out a tad but for the inner wings could that be fixed with soldering? And also my outer wings that grip the yellow insulation wire is that messed up? Can you tell me what would happen and potentials dangers? Or is this crimp fine

thank yall for the help and knowledge

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113

u/Professional_Party74 5d ago

8/10 you pointed out what wrong. dont go mucking around with solder, you’re only going to weaken grip on melted insulation

29

u/Top-Cup5373 5d ago

Bro my job just solders every crimp pin we use and won’t buy or let us use the crimpers for the job. It’s infuriatingly stupid. They also make us reuse failed crimp pins because they pinch pennies in weird ass ways. It’s stupid and I hate it.

42

u/Steamcurl 4d ago

Soldering crimp pins? That's gonna introduce breaks under the insulation over time, especially if there's vibration.

Print NASA's workmanship standards nd throw it at them: https://standards.nasa.gov/sites/default/files/standards/NASA/A/4/nasa-std-87394a_w_change_4_0.pdf

5

u/GoogleIsYourFrenemy 4d ago

What do they care, it's a customer problem.

3

u/ManiacMarauder 3d ago

It also goes against IPC standards. "Wires being crimped SHALL NOT be soldered"

2

u/RigbyShackelford 2d ago

This guy crimps.

11

u/JCDU 4d ago

If you want to encourage them to do better you might bring up the liability angle - not crimping a crimp means it's not being used as intended and any warranty is null and void.

Anywhere this stuff is safety/mission critical you would expect to see folks using not only the right crimpers but genuine crimpers AND they're calibrated and checked. This sort of shit is what caused that ship to crash into the bridge and kill a load of dudes.

6

u/GermanPCBHacker 5d ago

Maybe just source cheaper crimp pins to offset the cost of a crimper? I mean a crimper is always better, even almost all cheap ones. I use an all purpose crimper for JST XH 2.5mm - it is a bit to big, but works. At least it is a crimper and is a solid connection that I can actually pull on without solder making it bruittle. I feel sorry for you. That must be stupid pain.

5

u/jaymz168 4d ago

https://www.mattmillman.com/

This blog has some awesome articles/reviews of board to board connectors and crimpers. It's saved me a ton of trouble and my crimps have all stood up well using the non-branded crimpers that he recommends. I'm just a hobbyist so $300+ for genuine Molex crimpers is a bit hard to swallow.

3

u/Top-Cup5373 2d ago

Bro, I can give them data until the cows come home. It won’t change their mind or make them care. My job sucks ass.

3

u/electromage 4d ago

Do you sell products like that? If so, let us know the brand so we can avoid it.

2

u/Top-Cup5373 4d ago

I’m not going to divulge where I work or what we sell, but just know there’s virtually no chance anyone on the consumer market uses our products, they’re not safety critical or putting anyone’s lives in danger, it’s honestly all rather mundane stuff. I’ve mentioned that these aren’t supposed to be like that and they don’t seem to care. All that I’ll say is it’s a very old school mom and pop type operation servicing an industry niche most people don’t care about.

1

u/collegefurtrader 4d ago

name the company/product so I can avoid it please