Homebrew PCBs

I am very interested in this subject and I have on and off over the years done some testing but nothing recently.  

 

One absolute requirement:  Single pass printing and single sheet (no stacking).  There is no way that high resolution can be achieved in a regular printer if the paper is inserted twice.

 

As you all know there are two goals:  UV opacity & resolution.

 

I started testing a few years ago with three printers, four different types of paper and each ink color.  A LOT of test combinations!!  I measured opacity vs. wavelength with a spectrometer and I used my resolution chart.  Unfortunately I ran out of time before having time to write up the testing and data.

 

Here is the test chart and procedure info:

http://www.vinland.com/USAF-1951.html

 

Bertho



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