Homebrew PCBs

michael tenore wrote:

> the Vinegar on my next ry in a day or two! I will make a test pattern
> to see how thin a trace I can make with it.I got a decent line down
> to 15 mils so far.Using a iron..

Hi, isn't there a "reference" master to test the accuracy of the system?

For example, my friend Vincenzo has something that he uses to calibrate
his UV equipment:

http://www.vincenzov.net/tutorial/stampati/bromografo.htm
in particular:
http://www.vincenzov.net/tutorial/stampati/test.pdf

bye
as