Patrick, How would you handle a situation where you have layer identification areas on the board edges with negative planes? We are having a problem with getting the 274X to leave the etched layer number in the voided area. It' keeps the void, but wipes out the layer identification number. We are being told that it is an Allegro problem, not a fab house's problem. What say you? Thanks, Deac Descoteaux PalPilot, East Coast Corporation, (PEC) Director of New Business Development 71 Spitbrook Road, Suite #307 Nashua, NH 03060 office # (603) 888-3400, ext. #10 Toll Free # (877) PALPILOT, (725-7456) Fax # (603) 888-3500 Cell Phone# (603) 557-7568 email address: [log in to unmask] www.palpilot.com PCB LAYOUT * SIGNAL INTEGRITY * PCB FABRICATION * METAL CHASSIS * PLASTIC MOLD INJECTION * BACKPLANE SOLUTION * CONNECTORS The information contained in this communication including any attachments is intended solely for the use of the individual or entity to whom it is addressed and others authorized to receive it. This communication may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by responding to this email and then delete it from your system. No printed copies should be made or retained. Thank you. -----Original Message----- From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Patrick Jabbaz Sent: Wednesday, November 29, 2006 12:18 PM To: [log in to unmask] Subject: Re: [DC] Merging layers; basic Gerber editor I want to clear thing up a bit, the way Allegro outputs Gerbers in the RS274X format, it is fully compliant with the format, and it works great for using Positive copper shapes for planes, really brings down the files size. What is really happening, is that each layer that contains positive polygons is made up of composite layers, this is done by the use of aperture MACRO function on RS274X. If you Fab house cannot read fully compliant RS274X gerbers I suggest you change Fab houses now. All FAB houses I have used in the past had no issues with RS274X Here in the US and Overseas ASIA. By the way IF you use Mentor Graphics pads, it also has the option of using aperture Macros. Best way to output RS274X I would suggest if using Allegro to output ODB++ it is superior to RS274X in terms, that the netlist is already embedded with the CAD Data. Iwish Pads had that feature. -Patrick Pat Johnson wrote: > If you are dealing with Advanced Circuits or another house using Valor or > Genesis, and if they have not been trained properly, they have issues reading > RS274X from Allegro. > > I just went through that routine with them just a few months ago. And the > conclusion was that they didn't know how to use their "tool" for multi-layer > RS274X especially in Allegro flavor. > > Pat J > Compu-Tier > > ---------------------------------------------------------------------------- ----- > DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d > To unsubscribe, send a message to [log in to unmask] with following text in > the BODY (NOT the subject field): SIGNOFF DesignerCouncil. > To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) > Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives > Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 > ---------------------------------------------------------------------------- ----- > > -- Patrick Jabbaz Ubiquiti Networks 495-499 Montague Expwy Milpitas, CA 95035 T: (408) 942-3085 M: (408) 621-6533 ---------------------------------------------------------------------------- ----- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ---------------------------------------------------------------------------------