--- In
Homebrew_PCBs@yahoogroups.com, "Ron Amundson"
> Also Protel does not have the ability to print white on black, so I
>have to generate gerber,and then use a gerber tool to create
>negative transparencies. Does Eagle have that built in?
I'm in a similar boat with my old microsim pcboards/specctra package
since they were bought out by orcad, then cadence. You mentioned a
gerber too to generate negative images; do you know of a free tool
that will invert a gerber then export it in gerber? --negative plot.
Some board houses now won't accept innerlayers in positive mode
anymore and my tools are just old enough they don't do negative
layers (at least I can't find any way of doing it).