--- In
Homebrew_PCBs@yahoogroups.com, "cunningfellow" <andrewm1973@...> wrote:
>
> > Someone wrote:
> >
> > been doing it this way since the early
> > 70s after endless experiments.
>
> Thats nothing. I have been doing it that
> way since 1736. Although it wasn't until
> laser printers where either first made in
> the mid 70s or possibly when the first
> commercially viable printer came out in
> 1981 that the common people did it.
>
> The big step was in the very late 80's
> or early 90's when xerox released a paper
> about their novel new idea for using
> laser printer toner as an etchant mask
> that the idea REALLY took off.
lol
We were doing it with laser copiers long before xerox came out with there clame to fame, mind you in those days all are lay files were hand done, didn't have computers and such like in those days like we have today, so much easier now.
>