Homebrew PCBs

> Robert wrote:
>
> question to discuss:
> is there some chemical (surely organic) to be
> added to the ink that:
> 1) is water soluble (or suspendable)
> 2) adheres well to metal
> 3) becomes inert when (over) heated?
> 
> the yellow pigment of MIS ink is one answer, are
> there any others?  some sort of water soluble
> varnish? one that could be used with non Epson
> printers?

I was thinking gelatine a few weeks ago - but don't
have enough interest in direct-injket to give it a
try.

It can definitly be "cured" to be etchant proof.

But you might have to have it very very thin in
water to not clog.  And then have some custom print
driver that can slowly drop down layers of it and
heat between passes.

(think 8 pin dotmatrix trying to do letter qlty)

This idea then would turn into another complex
build thing - rather than the magic bullet "buy
this $10 printer, use this ink, bask in glory of
world peace and end to poverty"