I ran into a bit of a issue with via to via... my DRC report showed vias on top of vias that were actually quite separated... vertically. I had 1-2 micro vias above 7-8 microvias and these came out as errors on the DRC report. That strikes me as a problem. -----Original Message----- From: Mitch S. Morey [mailto:cadpro2k@xxxxxxxxxx] Sent: Tuesday, June 15, 2004 3:51 PM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] Re: Trying to find a specific drill size Been reading the thread, and I still don't know why you need to create the file. As many boards as I've done, I've never created it. Never needed too. When you run DBCheck routine, does it show you duplicate hits on the drill in question? It will if they are vias. What I do do now (since we were hit with redundant drills) is create a simple script that changes my constraints to look at 'same net' vias and will report if they less than 5 mils apart. Then I simply turn on all the layer DRCs and select them as 'info' and save the file as a text file. I search that for 'via to via' spacings, and shows me ANY violations. Simple, quick, 'almost perfect'. Did I miss something? Good day. Mitch > Thanks to all for your helpful info. Unless I missed something I still > can't believe that Allegro can't generate this nc_tools.txt file > automatically rather than the designer having to do this every time and > on every respin. > > Tony Stanislao, Senior PCB Design Engineer > Pannaway Technologies | v: 603.766.5129| e: stanislao_t@xxxxxxxxxxxx > ========================================= ----------------------------------------- This email was sent using http://cafemail.pcbcafe.com . ----------------------------------------------------------- To subscribe/unsubscribe: Send a message to icu-pcb-forum-request@xxxxxxxxxxxxx with a subject of subscribe or unsubscribe To view the archives of this list please login at //www.freelists.org. Our list name is icu-pcb-forum or go to //www.freelists.org/archives/icu-pcb-forum/ Problems or Questions: Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx Want to post a job listing ? DON'T DO IT HERE! Better yet, join our jobs listing forum. SUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx POST: icu-jobs-forum@xxxxxxxxxx ----------------------------------------------------------- ----------------------------------------------------------- To subscribe/unsubscribe: Send a message to icu-pcb-forum-request@xxxxxxxxxxxxx with a subject of subscribe or unsubscribe To view the archives of this list please login at //www.freelists.org. Our list name is icu-pcb-forum or go to //www.freelists.org/archives/icu-pcb-forum/ Problems or Questions: Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx Want to post a job listing ? DON'T DO IT HERE! Better yet, join our jobs listing forum. SUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx POST: icu-jobs-forum@xxxxxxxxxx -----------------------------------------------------------