Make all of your shapes positive. -----Original Message----- From: Ritter, Alan [mailto:Alan.Ritter@xxxxxxxxxx] Sent: Wednesday, October 20, 2004 3:55 PM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] RS274X Artwork Generation Question I'm doing a quick&dirty board to test out a concept and was planning on going to one of the Internet quick-turn places (pcbexpress.com) for a handful of prototype boards. (Using Allegro 14.2) Normally, we would generate 6x00 artwork with a separate aperture file, but pcbexpress wants RS274x artwork. No problem, I figure, just change Allegro to generate RS274x and go for it. Well, not so fast, copper-on-fiberglass-breath... The board has a split ground plane (DGND and CHASSIS). Normally, I would set up the shapes to cover the holes/pins connected to the respective nets and add anti-etch lines (class ANTI-ETCH, subclass GROUND) to form the barriers between the shapes. Then plot as a negative plot with the anti-etch turned on along with pins, vias and the etch layer with the shapes, but tick the "suppress shape fill" option. However, in RS274x, the "suppress shape fill" option is greyed out. No problem with that, since the pins, vias, etc., plot with antipads or thermals, depending on whether they're connected to the ground signals or not. The problem is, my anti-etch lines don't plot at all, so there are no barriers between my ground shapes. If I set the "shape bounding box" value to something non-zero, I get a plotted shape outside my outer (CHASSIS) shape the width that I specified. This is thoroughly annoying, and I can't see that I am doing anything fundamentally different from what works just fine with 6x00 artwork generation. Anybody else have any bright ideas? /s/jar (alan.ritter@xxxxxxxxxx) http://www.mtritter.org Bausch & Lomb 150 Years of Perfecting Vision, Enhancing Life (TM) EMAIL DISCLAIMER Please Note: The information contained in this message may be privileged and confidential, protected from disclosure, and/or intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying or other dissemination of this communication is strictly prohibited. If you received this communication in error, please immediately reply to the sender, delete the message and destroy all copies of it. Thank You ----------------------------------------------------------- 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 -----------------------------------------------------------