Homebrew PCBs

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>  I've had no luck with any Sharpie. The lumicolor pen you speek of is the best one I've ever used. It has superior holding strength in acid - but still fails (lifts off pcb) at the end of



Well I have 2 sharpies here, uk WHS ones, one has a pull off lid, the
other has a push button action, the pull off lid (blue) seems to draw
better, as though the push button one (black) is slightly dryer, but
the etch is better on the black.

Like I said I drew some simple lines and colourd in a square, and did
same test patter with a cheapo cd pen, all three were etched in FE at
room temp and took about 15 minutes, I agitated them during the
process, and kept removing board to hold to light to see if it had
etched.

all worked fine.




Lez