For small boards, I have a program called CAMDOS that seems to work quite well. It does not have autorouting capability, but then again for small boards ... :). I don't recall the exact limitations but IIRC, standard bus boards were no problem. Peter Pachla wrote:

At 17:11 08-02-2000 -0000, you wrote: <snip> <snip again> Unfortunately (for my needs at least) most of the "free" packages have too many limitations to be useful. I had an old DOS version of OrCAD/SDT once, and it did serve me well for some years. Thanks to having it, I was able to do a "competitive upgrade" to Micro Code Engineering's CircuitMaker Pro and TraxMaker Pro (about USD $700 or so for the pair). So far, it has proven to be a good investment. The digital simulation functions saw me through some tough problems in one of my classes, and produced output that had both my instructors raising their eyebrows. I'll be happy to answer any questions if you want to know more. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 "Our science can only describe an object, event, or living thing in our own human terms. It cannot, in any way, define any of them..."