With all the cool and useful parts you can whip up (relatively) quickly on a 3D printer, it’s a shame you can’t just print a PCB. Sure ... uses an Elegoo Mars resin printer and a couple ...

But what if the smoke came not from a component but from the PCB itself? [Happymacer] chanced ... fiberglass and resin, leaving a gaping hole in the board. He fastened a patch for the hole ...