I _think_ I still have some old MS-DOS shareware layout software
(it should be on a Simtel mirror too) called PC-Route. It is simple,
but can handle auto-routing double-sided boards including using
plated-through holes. Actually, I'm positive that there is more than
one such freely available package around.
Which reminds me, I've always meant to write a X layout package someday.
I spent about 6 months studying the subject (university libraries can
have hidden treasure), but never got around to hacking code :-(
P.S. I received a notice from PADS about their new website.
They make production layout software for the PC.
It can be yours for a mere $10,000 (last time I asked for a price
at least) for the bare-bones package. The auto-router is extra
($5,000 I think). This is of course for a SINGLE station license.
-- Andrew E. Mileski mailto:aem@ott.hookup.net Linux Plug-and-Play Kernel Project http://www.redhat.com/linux-info/pnp/ XFree86 Matrox Team http://www.bf.rmit.edu.au/~ajv/xf86-matrox.html