[iforce2d] has a large number of boards with a lot of headers, and has created a rather special CNC machine to to do the job. It’s a soldering robot, controlled by LinuxCNC and you can see it ...

Many decades ago, when soldering was an activity more often associated ... with Kapton tape and a high-temperature-resin 3D printed shield. On the back of that is a 3D-printed handle.