Completing this initial foray into these cheap T12 soldering irons is the GitHub repository, which contains the pin-outs, wiring diagrams and further information.

Every soldering station on an assembly line will have three things. A roll of brand new solder, flux (I like Kester 951, you can buy it in a pen), and a nice soldering iron. That’s all you need.

A new type of solder can be melted and shaped in three dimensions under the force of a weak magnetic field. Using a magnet to pull the solder up through narrow holes makes it possible to create ...