Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I've been following this thread with interest. Seems that direct
printing of a PCB mask is something of the holy grail to us homebrew
types.

One thought just occurred to me. Since they sell pens that you can use
to draw your own layouts (i.e. Sharpie pens), how about finding out
what ink is used in those and fill an ink cartridge with that?

I know this is obvious, but I've heard lots of other complex formula
that don't seem to work and lead to clogging. The Sharpie ink seems
based on a volatile solvent that dries very fast. The solvent may also
help to resolve head clogging problems as it might be a self-cleaning
solution. One problem I can see is that it may be so fluid that it
would just drain out of the cart. But perhaps this could be resolved
by altering the vent ports to allow less air in.

Hope somebody figures this out.
-Ted