Good shops do it based on the film density. Some re-plot new film every time a repeat job is process, usually not very many exposures as volumes are low in the US compared to Asia. Some never and some per an arbitrary figure based on either feeling/emotion or data/pervious density results.Scott B. Westheimer5709 Clarks Fork DriveRaleigh, NC [log in to unmask]: (919)713-0748Cell NC: (919)961-5364 > Date: Mon, 23 Jun 2008 10:57:54 -0600> From: [log in to unmask]> Subject: [TN] Artwork film replacement frequency> To: [log in to unmask]> > Hi Technetter's,> > How often do board fabricators typically replace their artwork films?> > I have one fabricator whose replacement frequency is very different from> all the other fabricators I deal with. I want to know if that> replacement frequency is reasonable or not.> > Thanks,> Ryan> > ---------------------------------------------------> Technet Mail List provided as a service by IPC using LISTSERV 15.0> To unsubscribe, send a message to [log in to unmask] with following text in> the BODY (NOT the subject field): SIGNOFF Technet> To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)> To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest> Search the archives of previous posts at: http://listserv.ipc.org/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> -----------------------------------------------------
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