I think I'm going to end up just building a light box.  I did negative
photoresist in college and it wasn't at all difficult; we'll see how the
toner transfer stuff works, as I have a few boards to do in the near future.

I put together an etching tank with heater and bubbler for $20, and that was
just buying the cheapest stuff I could find around town.  I think I could do
better if I tried, but hey, that wasn't my money.  I'd like to try making a
mask with my inkjet; it makes pretty good images.  I don't think I could do
a negative unless it has a LOT of ground plane, but Digikey mainly sells
positive boards anyway.

Mike H.

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