Lt. Gen. Robert D. McMurry Jr., commander of Air Force Life Cycle Management Center at Wright-Patterson Air Force Base, Ohio, listens to Ashley Totin, a project engineer with America Makes, discuss the capabilities of 3D printing on Sept. 10, 2019, at America Makes in Youngstown, Ohio. McMurry toured the facility to learn about 3D printing and additive manufacturing capabilities and possible applications for the Air Force. (U.S. Air Force photo/Senior Airman Christina Russo)