Hey guys, Do you use either technology files (.tcf) or constraint files (.dcf) from Constraint Manager (CM)? If so, which one and why? I've played around with them in the past, but typically don't use them. If I'll start a design similar to a previous one, I just use the older similar one as the starting point and delete all of the components/traces/vias. I have someone new to Allegro (just had formal training) in another group asking about .tcf files. Thanks for any clarification you can give me regarding these CM files. Regards, Gary MacIndoe Senior PCB Design Engineer EbD R&D Hardware Surgical Solutions Group Covidien Boulder, CO