Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I've tweaked my UV box to even out the intensity (somewhat, not 100%
perfect but good enough). I'm ready to actually use it now :-) I've
got some questions about steps in the photo process that would be nice
to skip or otherwise cheat on:

∗ Developer/stripper chemistry - is more concentrated ok? Not optimal
from a cost point of view, but I'm thinking of time-between-discards
and shelf life.

∗ Developer/stripper temperature - I can use warm water to mix it, but
heating it up for use might be tricky. Will it work at room
temperature, albiet slower?

∗ Laminating - hotter OK? My laminator doesn't have a heat setting,
and the hot air gun is too unpredictable, so do I err on the side of
"hotter" or is "just right" important?

∗ baking - 212F for 5 min after developing. How important is this?
How critical? Hot air gun OK?

∗ bubbling/agitating developer/stripper - how much of an effect is
this? With the containers I have I could "swish" the boards around,
but that's about it.