Homebrew PCBs

>
>
> The trick may be the other ingredients (like carrier, fixer, etc) when 
> 'cured'.
> Perhaps it is the actual yellow or magenta 'powder' in the ink that 
> fuses and
> sticks to the copper. Black is carbon that doesn't fuse or stick by 
> itself to
> the copper when heated, and the rest of ingredients are soluble. That 
> would
> explain why Durabright black has been useless till now.
>
>
> .


This might be a little bit off the wall, bit I wonder if it would be 
possible to make an printable etch resist by mixing laser printer toner 
with a fluid carrier (most ink is an alcohol/water mix, right)?

You would probably have to use it in a epson printer, as I could see 
some issues coming from the toner possible melting in a thermal print 
head, but if I think toner is fine enough to not clog the print head.

If someone has a bunch of old junk epson printers, you could try it.

CW



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