Homebrew PCBs

Yah, I've never had any problem with getting a clean line when I do scratching. My biggest problem is that the line is so incredibly thin and precise that I have a hard time 'covering' any sizable area in any reasonable time. :) I use a carbide tipped scratcher, the thing that's meant to scratch through Dykem.

*Brian

--- In Homebrew_PCBs@yahoogroups.com, "Dean Batute" <phix_it@y...> wrote:
...
> The scratch and etch idea has been tossed around, experimented, and 
> succcesfully tried by others. All have relied on dragging a sharp 
> point across a "Blued" or coated circuit board.
> The biggest problem was finding a suitable "Resist" that scratched 
> CLEANLY yet still gave protection from the etchant.