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 ...
Tom's Hardware on MSN
Hacktivists share how to making working PCBs made from natural clay with prehistoric technique
The method shared is open source, avoids plastics and conflict minerals, and looks like fun.
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