Hello--- Currently, at my company we rely on multiple checks (buddy system) to verify the correct material is being used during multilayer lay-up. We know that is not completely effective because of human error. We are investigating automated or more reliable methods of material verification. Weight verification, thickness verification, automatic prepreg dispensing, and machine vision are some of the ideas we are considering. Does anyone out there have any experience with any automated material verification method during the multilayer lay-up process? Can you share with me some pros and cons of your system. Thank you Paul Formiller Lamination Process Engineer Merix Corporation