--- 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!