Dear collegues, We are a producer of R/F pwb's. The great majority of jobs run in very small numbers, so we have to avoid expensive tooling. As a consequence, all machining of part-components and finished panels is done by nc-routing. Unfortunately, we have been unable to avoid burring of the quite tough polyimide laminate. Therefor, a substantial work is put into manual 'deburring'. This is a very time consuming operation which we would like to avoid. Any advise regarding optiming routing or experinces with possible alternaive methodes, e.g. water-jet or laser cutting, would be very welcome. Regards Torben Oesteraa [log in to unmask] Printca AS Denmark ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################