Our fabrication drawing of panelized PWBs is done in AutoCAD as a dumb drawing only. We provide Gerbers for the 1-up PWB that is to be stepped and repeated (original design in VeriBest or PCAD). We show tooling holes of global fiducials (SMEMA STD 3.1) on the thieving area of the panel, and we don't provide CNC router files. I recommend that you talk to your PWB manufacturers and contract assemblers for their requirements and develop a specification that incorporates everyone's needs to minimize the cost of the panel design. Remember that you buy a panel from the PWB manufacturer no matter how many boards you can put on it. John R. Kretsch, P.E. Sr. Engineer, Design Assurance ADC Video Systems [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: Panelling of PCBs Author: [log in to unmask] at internet-mail Date: 08/06/96 00:45 Many of our PCBs are panelled to go through our SMT line. Currently we produce the gerbers for one board and provide a drawing showing the PCB manufacturer how to step and repeat the board to produce the panel. We have had problems in the past with the routing of the board outlines and panel breakouts as a result. Most of our boards are currently produced in PCAD 4.51 but we are moving to Veribest. Questions. 1. Is anyone else using Veribest to produce panels? 2. If you are,are you doing the panelling in Veribest, as a post process in a Gerber editor or do you provide a drawing to your PCB manufacturer showing the panelling? Which do the PCB manufacturers prefer and which have provided you with the best results? 3. What information do you provide to your PCB manufacturer? Do you provide router CNC files? Garry Allen [log in to unmask] Hypertec Research Pty Ltd ph +61-2-98579900 61 talavera Rd fax+61-2-98707081 North Ryde NSW 2113 Australia **************************************************************************** * The mail list is provided as a service by IPC using SmartList v3.05 * **************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * **************************************************************************** **************************************************************************** * The mail list is provided as a service by IPC using SmartList v3.05 * **************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ****************************************************************************