Homebrew PCBs

On Wed, 04 Feb 2004 17:06:49 -0000, tboneuk_2000 
<a_reynolds@...> wrote:

> I have just looked at the film I used and discovered the print may
> have been the wrong way around. I presume the ink should have been
> next to the board, I had this the other way around so the light hit
> the ink printed on the film then had to pass through the transparent
> film itself before hitting the board.
> Am I right in thinking this would effect the exposure efficientcy or
> will it not make any difference?
>
>  Kind regards
>
>  Tbone
>
>

it is better to put the ink to the board because of undercutting of light, 
however i have made
a few boards the wrong way around and it always worked...
it should not affect the result in larger copper areas (e.g. a pad).

ST