>I agree that 8/8 is quite do-able with a contact
>frame and UV tubes.
6/6 is doable here but I've never had reason to with anything real.
Here is tortuous 6/6 artwork, this photo doesn't do it justice due to
moire and other artifacts;
http://www.pbase.com/eldata/image/62158168Here's a closeup of a section;
http://www.pbase.com/eldata/image/62158260Basically, it's 150 concentric rectangles resulting in 300 parallel
horizontal and vertical 6 mil tracks with 6 mil spacing. I can do a
faithful reproduction in copper without collimation which leads me to
believe the need for collimation at these pedestrian resolutions is a
myth.
--- In
Homebrew_PCBs@yahoogroups.com, "Andrew" <andrewm1973@...>
wrote:
>