>A number of years ago I expermented with useing "Rapidograph"
>pins on a home made CNC.  I used Universal drawing ink for paper
>& film.  It was made by Koh-i-noor modle # 3080-F.  I got it from a
>local art supply store.  It too still didn't want to stick.  However I
>found if I sanded the copper with a "Green Pad" and removed the
>oxid layer it stuck very nicely.

        Talking about plotters, one idea that can be considered is the following:

        A small laser (keychain?) with a kind of optics set, focusing in a very=
 narrow beam into the board. Put the board with some photoresistant=
 compound, "plot" it with the laser, and develop.

        Looks like a SURE method of photoplotting. Maybe with a higher power=
 laser, you can cut the cooper ;o)


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Alexandre Souza
taito@terra.com.br
http://planeta.terra.com.br/lazer/pinball/

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