Make your own double-sided PCBs with plated through-holes

Plated through-holes have long been one of the things you could get from the likes of OSH Park or JLCPCB that were difficult to impossible to produce at home. This morning, I stumbled across this video from four years ago:

This method uses chemicals that should be relatively easy to source and a bench power supply for constant-current plating. He uses a CNC mill to mill and drill the board and a 3D-printed frame to support the PCB and copper plates, but I could’ve done this back in the day with etched photo-resist boards and a drill press.

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