Homebrew PCBs

lcdpublishing wrote:
(snip)
> At this point though, I know the ink will act as a resist. I also 
> know it won't bead up on the copper.  Like you guys, I suspect that 
> proper drying is key.  So, that is what I am going to focus on as I 
> have time - getting the ink to dry, perferably quickly.

My point is that it may not be just drying, in the sense of some 
solvent evaporating.  It may actually cure to a different chemical 
structure over some period of time, after the solvent evaporates. 
Lots of paints do this sort of thing.  Let it sit in the sunshine for 
a few days.  It might react with UV, too.