Homebrew PCBs

>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/62158168

Here's a closeup of a section;

http://www.pbase.com/eldata/image/62158260

Basically, 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:
>