Hi Leon,
What resist (positive or negative) are you using and where do you buy
it? How do you apply it to boards? When I was in junior college, we
used to spin it on. How long will presensitized boards keep? How do
you dispose of your expended chemicals? I'm on a septic system and am
very careful about what I put down the drain because I or my neighbors
will eventually end up drinking some of it...
I'd like to try doing boards with a positive resist. It would
probably give more predictable results, once you got exposure and
developing times down, with less pitting.
Regards,
Dennis
--- In
Homebrew_PCBs@yahoogroups.com, "leon_heller" <leon.heller@...>
wrote:
> Why not use the UV exposure technique? It's much simpler and quicker
> and the results are excellent.