Steve,
I use a 4" diamond saw (QEP 60084A 4-Inch Portable Wet Saw). Home Depot current price $52.00. The last time I used it I didn't even bother using water, but I did use a respirator to avoid the dust. It cuts through FR-4 like a hot knife through butter.
The supplied blade is a bit thick, but you can get a slicing blade for $8.00 (0.008") here,
http://www.lopacki.com/sawblades/#fI am very satisfied with the product. You can also cut tile with it ...
Baxter
--- In Homebrew_PCBs@yahoogroups.com, Steve <steve65@...> wrote:
>
> There have been discussions from time to time on this reflector about
> techniques for cutting PCB material. I don't recall having seen mention
> of a band saw.
>