Reply To: 3D printed circuit boards?


I’ve also seen someone use an MPCNC (I think it was an MPCNC) to make an etching mask. They coated the whole PCB with something black, then used the CNC to scrape off the ink/paint where they wanted isolation, then etched the PCB and cleaned it off.

I saw one where they painted the copper with black spray paint, and then used the MPCNC with a laser to burn off the areas to be etched. Standard chemical bath and rinse to remove the copper, and a wipe down with acetone to remove the paint leaving the copper traces. I will be trying this at some point…