On 23/06/2011 11:09, John La Rooy wrote:
> Perhaps a UV laser could be used to selectively expose a photosensitised
> board.
> What level of detail could be expected doing this?
>
Depends on the optics and the etching. I'd imagine better than mask and=20
lightbox as even with clamped mask you get light at angle as well as=20
from above so unexposed areas get exposed at edge (maybe not evenly either)=
..
--=20
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