5 ms·

Looks like the entire guide is here https://workmanship.nasa.gov/lib/insp/2%20books/frameset.html https://workmanship.nasa.gov/lib/insp/2%20books/frameset.htm..

Looks like the entire guide is here https://workmanship.nasa.gov/lib/insp/2%20books/frameset.html https://workmanship.nasa.gov/lib/insp/2%20books/frameset.htm... Pretty darn cool little site, will have to mirror it.

cuSetanta 3y ago
Have used this site a lot over the years, really useful resource. I wish ESA was more willing to do this sort of guidance document rather than just the requirements.
dotancohen 3y ago
NASA has some terrific workmanship videos as well. Here is the one on soldering techniques: https://www.youtube.com/watch?v=_RXugDd0xik https://www.youtube.com/watch?v=_RXugDd0xik
ProllyInfamous 3y ago
Even as a retired IBEW electrician, I learned several "workmanship tips" from this wonderful assembly guide: Something that I definitely "did wrong" for decades was over-twisting stranded wires before inserting them into a crimp connector. According to NASA's guide, the correct way is to strip the wire and insert it without additional compaction. Their reasoning makes sense: leads to individual strand breakage and/or loose crimps. Related, double-crimp terminals are designed to have one crimp over uninsulated wire, the second (closer to contact/space/barrel) mates with the stripped copper. Similarly, for twist-post connections, the first 1.5 twists should be of insulated wire, and then several more of stripped conductor.