Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Stephen Bartlett 
<tower.op@v...> wrote:
> When applying toner resist to a double sided board, do you 
transfer the
> images for borh sides at the same time, or do you do one side at a 
time?
> If the latter, does applying heat to the second side have any 
adverse
> effect on the preciously applied resist on the first side?
> 
> Thanks,
> 
> Steve Bartlett

I did a couple boards doing one side at a time. After ironing the 
one side I then re-wiped the second side with Acetone and then 
ironed the second side. It did not harm the first side at all. To 
line it all up in the first place, I placed them together and held 
it up the light to line it all up. I then taped all 4 sides together 
and then layed it on the piece of copper. I used a very sharp razor 
blade and cut along 3 sides of the paper using the copper as a 
guide. Then lining them up was easy enough, I just made sure the 3 
sides were exactly on the edges of the copper. The biggest board I 
did so far this way was 5" x 6" and it had plenty of vias which came 
out right on the money. I guess your gonna get a couple different 
ways to do it on here and they all seem to work good, so its gonna 
be a personal preference thing. Good luck!