7:32Soldering Header Pins, Part 1: How a Solder Joint Works (and Goes Wrong)
How a through-hole solder joint works, and how it goes wrong. Part 1 of the soldering lesson on the Solder-Practice Rev B board (8 rows of 22 header pads, 176 joints), before the RaceScale pads.
Bench notes
- The joint is shown cut in half, with a pin and pad temperature gauge and an "iron on the joint" timer. Covers the five-step rhythm, six common mistakes with their fixes, and a good-or-bad quiz.
- Solder: 63/37 tin-lead, rosin core, 0.5 mm. Iron at 330 °C. Temperatures and times on screen are illustrative.




