Homebrew PCBs

I feel one would need to stay with ink fluids that can
be cleaned with water solvent cleaners. from my
experence with paints, if a solvent based ink dries in
the head there is no way to clean it, it drys hard and
solvent cleaner would not penatrate the pluged nozzel.
just stating my thoughts. i may be wrong. it is a
tough issue. have googled about banner printers but i
dont know what size printer holes thay have and
probably could not get the ink in small amount.
I read the label on the ritz dye about the salt( i am
not a chemist) but if the salt is desolved the salt
particles should not be very large and should pass the
printer holes.please correct me if i am wrong. if i
have damaged this old epson stylus color II print head
i may be looking for another one because it converts
to a flat bed very easy for me.
every one keep the suggestions coming, i need all the
help i can get.
mebo





--- Stefan Trethan <stefan_trethan@...> wrote:
> On Mon, 15 Mar 2004 12:17:16 -0000, Ted Inoue
> <ted@...> 
> wrote:
> 
> > 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
> >
> >
> 
> I suggested a few hundred times staedtler red, i
> have no sharpie pen here 
> and
> i think it is similar.
> Maybe in the other mail from pebo is a comment on it
> (i still need to 
> read).
> I agree that it is a obvious thing to try as it is
> known to work as a 
> resist.
> 
> ST
> 
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