Show HN: iFixit created a new USB-C, repairable soldering system

Re:Show HN: iFixit created a new USB-C, repairable soldering... by nemosaltat on Thursday September 12, 2024 @11:47PM (#41527878)

Since no other navy nukes have chimed in on this thread to speak about ETMS—eutectic point is a huge piece of the puzzle and there are tradeoffs for selecting between 60/40 and 63/37. Fillets suck, bifurcated terminals are worse.

For any other Navy nukes, I wanted to link to a good reference on what ETMS is (was?) but couldn’t readily find anything. If anyone has a reputable link to publicly available course material on their solder grading rubrics or the 7-step, I’d be interested.

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Re:Show HN: iFixit created a new USB-C, repairable soldering... by bigiain on Friday September 13, 2024 @12:03AM (#41527946)

Not what you're asking for, but I have this from NASA in my bookmarks:

"THROUGH-HOLE SOLDERING GENERAL REQUIREMENTS"

https://workmanship.nasa.gov/lib/insp/2%20books/links/sectio...

This one might be relevant too (but it's too long for me to read through right now to confirm):

"Military Standard - Standard requirements for soldered electrical and electronic assemblies (1989)"

https://electromet.com/wp-content/uploads/2015/09/Electromet...

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