The PCB holder uses 3D-printed parts, M5 hardware, a length of 2020 aluminum extrusion, and one spring to create a handy and adjustable design that accommodates a variety of PCB sizes and shapes.

But what about making a PCB that gets hot on purpose ... The board, which was a single snaking trace on the top of an aluminum substrate, did heat up as it was supposed to. However, the thin ...