I was thinking of this too. I definetly think there would be some sort
of heat tolerant issues. I also wonder about the avilability of suitably
substrate. Etching all the copper off a blank PCB just to end up with a
copper free board to print on seems like a waste :)

Josh
--
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
fools.
        -Douglas Adams

SM Ling wrote:
> Would it be possible to use conductive ink on a thin sheet of insulator?
>
> I only did a 5 minute search, there might be such an "ink", but then there
> are adhersion and heat-tolerant issues.  Would have to dig deeper when time
> allows.

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