Scratch n' Etch PCBs

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The Scratch n' Etch method is a method for producing PCBs with and etch resist that is scratched away with a CNC with a carbide scriber. This page documents a successful version of this method done on a McWire-style CNC by Matt Gilbert. (While some have declared the McWire a "death march", it works fine in this case. More importantly, the method shown here should be easily incorporated into a different RepRap/RepStrap design.)

ScratchNEtch process 8.jpg

The scratch n' Etch method has been described in principle on the Homebrew PCBs Yahoo group. This page documents the Scratch n' Etch process as explained on that discussion board, with one important addition: The scriber is pressure sensitive.


More to come