Mike, Would you happen to knwo any of the following?
Between Situs, Electra, and Spectra, which honor: 1) internal board cutouts? 2) limited neckdown between pads and/or vias? 3) width and clearance attributes by net? 4) width and clearance attributes by net class? 5) teardrops or snowmen? 6) 0/60/120 degree instead of 0/90 degree routing bias? 7) via style attributes by net or net class? 8) length matching? 9) parallel pairs or triples? 10) rounded corners? Jeff Condit > Tony > > That is what keepouts are for....The router will obey them. I use via > keepouts, I also train and channel routing with keepouts. it takes a few > tricks, > > Mike > > > > -----Original Message----- > From: Tony Karavidas [mailto:[EMAIL PROTECTED] > Sent: Friday, May 21, 2004 1:25 PM > To: 'Protel EDA Forum' > Subject: Re: [PEDA] Router comparison > > > Just because you WW in neat bundles doesn't mean you have to ignore signal > groups. > > Anyway, I'm not wire wrapping boards. I'm making PCBs and I almost always > have mixed analog/digital on the same board. I prefer to keep the digital > grunge out of my analog area. Sure, the auto router might like to find a > path for a data pin right next to an op-amp input, but *I* don't want it > there. I want to keep the data bus in a tight area, I'm not worried about > crosstalk from data pin to data pin because the lines are settled by the > time a chip select comes along. > > Tony > > > > -----Original Message----- > From: Mike Reagan [mailto:[EMAIL PROTECTED] > Sent: Friday, May 21, 2004 7:52 AM > To: 'Protel EDA Forum' > Subject: Re: [PEDA] Router comparison > > > > > > I remember years ago an engineer getting mad at me because I wire-wrapped > his circuit trying to make it look nice and neat with all the wires bundled > together in "streets & avenues". He said it was a big cross talk problem. He > wanted point-to-point with just a little slack in the wire length. > > Looks like some things never change. > > Tom > Absolutely, I learned this from my WW days also. If you wanted the WW > card to work with the least amount of noise, you never ran neat bundles > > Mike > > > > > > > > > --------------------------------------------- This message was sent using Sunset Net Webmail. http://www.sunset.net/ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
