Dear synergists: The peripheral area of a laminated printed circuit board experiences the most scaling problems. Yet this is the area of the panel that is x-rayed in order to measure for xy drill offset. Xray data suggests our current scaling error is not predictable. Also, our shop sees that the measured offset, especially in Y, usually results in an overcompensating shift in the drill offset. Has anyone else seen a Y offset measurement problem? More importantly, how is data from the peripheral area justifiable? Best regards *************************************************************************** * TechNet 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. * ***************************************************************************