Sure, what you need is an instant drying pen like those used by
photographers to write on the front of photo's.  You can always check
a photo store, but I have been using a common office waterproof pen
lately with great results on all surfaces.  Try the Staedler LumoColor
AV permanent pens.  These are designed for overhead projectors.  There
are similar non-permanent pens available from Staedler, so be sure you
get the right ones.  The giveaway is the words "Permanent" and
"Waterproof" and the Staedler number 313.  I usually use the S size,
but you can get them in several tip sizes.  Start with the S though, I
think it is your best bet.  My local Office Depot and Grand & Toy
stores carry them individually and in packs of four colours (black,
red, blue and green).

Incidentally, I suspect this pen would make a good etchant resist too
for those interested in plotting PCB pattern directly to copper.

Good luck - Martin.
mrgreen@NOSPAMbigfoot.com

Remove the NOSPAM from this email address before replying.
Stamp out SPAM everywhere!!!

On Wed, 25 Mar 1998 16:37:13 EST, you wrote:

>        We've been experimenting with various methods of labeling
>prototype front panels.  The latest trick is use iron-on transfers run
>thru an ink jet printer.  It's a bit tricky, but it works.
>        I'm wondering, however, about using a flat bed plotter to print
>such panels.  I've got this Houston Instruments DMP-29 plotter (from way
>before I generated Gerber files for PCBs).  Anyone have any ideas about
>pens that could be used in that to write on aluminum panels?
>
>Thanks!
>
>Harold
>
>_____________________________________________________________________
>You don't need to buy Internet access to use free Internet e-mail.
>Get completely free e-mail from Juno at http://www.juno.com
>Or call Juno at (800) 654-JUNO [654-5866]