PCBs with a 3D Printer

https://www.stavros.io/posts/make-pcbs-at-home/

This looks way easier/reliable than toner transfer… one might imagine multiple marker tips and an ink reservoir for finer tolerances

pcb boards are cheap

Thought you were going to post this.

I got to test some prototypes built with this machine at my old job. This is probably going to replace a lot of quick board prototypes in the near future. Performs very well for what it does.