In a recent video [QWZ Labs] demonstrates an interesting technique to use 3D printing to make creating custom PCBs rather straightforward even if all you have is a 3D printer and a roll of copper tape ...

This FAQ will look at how a PC board loaded with anywhere from just a few to hundreds of components is soldered in one smooth ...

A 14-core parallel run is used in this case. You can change the number of cores by editing the system/decomposeParDict script.