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Melissa Ragsdale, President of NovaCopy's 3d Printing Solutions, demonstrates a device for scanning the dimensions and contours of an object for replication by a 3D printer on Mariama Konuwa at the Public Library in Chattanooga, Tenn. The library, in partnership with CO.LAB, was host to Chattanooga's first 3D event, with models, demonstrations, and information available to the general public in March 2013. (AP Photo/Chattanooga Times Free Press, Jay Bailey)