At 08:01 29/01/98 +1100, you wrote:
>At the end of the day, nothing beats photoetching. Use your laser to print
>the artwork on a transparency and expose it to UV light, develop it and
>etch it. Simple.
>
>Adios,
>LarZ
>

If you do this make sure the toner side of the transparency is next to the
copper. You can get some light where you dont want it otherwise. This is
more of an issue when doing double sided boards. I have had more success
however doing the following.

Print out your layout using normal paper on your laser printer.

Lay this print on a UV exposure unit.

Spray this with a product called ISO DRAFT. (Available in art stores I think)
This makes the paper translucent.

Lay your photoresist board on the layout.

Expose for longer than usual. (I use 6.5 minutes but this will depend on
your UV)

Develop in NaOH or whatever.

Etch in FeCl.

I have used this for prototypes and small runs for over 7 years, and have
done some fairly complex boards. Don't ask me about line thickness because
normally I don't care as long as they are about what I expect.

Joe