U.S. Air Force Col. Corey Simmons, 60th Air Mobility Wing commander, left, dons a 3D-printed face shield provided by Staff Sgt. Max Estrada, Travis Phoenix Spark lab noncommissioned officer in charge, right, in the Phoenix Spark lab at Travis Air Force Base, California, Sept. 30, 2020. Travis’ Phoenix Spark lab received a donation of 16 3D printers from community partners at the Travis Community Consortium to ease the strain on installation personal protective equipment for medical personnel. (U.S. Air Force photo by Senior Airman Amy Younger)