When I played with this kind of thing on an old HP plotter, the recommended
resist pen ink was a staedler red felt marker.  I replaced the felt soaked
core of the standard plotter pens with a scavanged staedler pen.  You can
get a bottle of the same ink (although it's special order around here.).
Might try to see if it will work in an ink jet nozzle.

-Dal
----- Original Message -----
From: "Roman Black" <fastvid@EZY.NET.AU>

> The only real issue is finding a suitable ink,
> and then the system would be many times cheaper
> and faster than any commercial board house and
> suitable for one-off with tiny PCBs.

> I also checked the ink cartridge in my bubblejet,
> it says "solvent = isopropyl alcohol" so obviously
> the plastic and all mechanisms are alcohol safe.
>
> This should make it EASY to find a suitable ink
> or lacquer.

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads