Homebrew PCBs

Well, it looks to me like someone with an epson printer that has 
durabrite ink has to give this a go.  

The ink is resisting the ferric chloride for a while.  Then, it 
starts to breakdown and the etchant starts to eat away at the 
copper.  So, it does appear to work for a while.

I certainly can read my name from the previous etch test.  However, 
I also drew a box and some lines around my name with a sharpie.  
When I run my finger over the board, I can easily tell the 
difference in thickness of the copper.  The areas that were masked 
with the sharpie are much thicker copper than with the ink.

The problem with my tests is that I have no way to consistantly 
control the application thickness (Film thickness) of the ink.  So, 
in areas where the ink is thick, it protects good - I suspect.  This 
also appears to be the case where I tried another "Flood fill" 
area.  Some areas resisted well, others etched through like there 
was nothing there.

So, I really think the next step is for someone to try it on an ink 
jet printer.  that will provide consistant thickness of ink and of 
course, something accurate to see after the etching.

that's all I got folks.

Chris