Teddy T. writes:
I started this episode in January 2019, but then was daunted by the intricacy of the actual PCB and trying to model it in Blender. I tried importing some vectors images of the PCB layers into mesh models, but the number of vertices was in the tens of millions. So, in the end, I simplified certain parts to show only sections of the larger PCB. Here's the finished product detailing How PCBs work.