1) I use direct toner to hot foil. I use HP LaserJet 6L, works at
either 300 or 600 dpi.
2)Flat hot press to PCB. I was lucky enough to have one around, works
much better than an iron. Better, more consitant results.
3)etch in ferric chloride. I have Ammonium Persulphate, but I want to
finish using all the Ferric fist (its taking a long time).
I get 10 thou lines (10mil) without problem. Large surfaces give me a
bit of problem, but easy to fix. I could probably get 5mils, I just
don't need it, yet.
Look for my PCP photo (scan) in the "Files" folder, maybe today.
John Myszkowski...
==============================
--- In
Homebrew_PCBs@yahoogroups.com, "John Craddock"
<John.Craddock@x> wrote:
> Hello all,
> I presume from the replies so far, all respondents use photo-
resists. I have these questions.
>
> What brand?
> What type? liquid or dry film
> What polarity? positive or negative.
>
> Many thanks in anticipation
> John C