U.S. Marine Corps Lt. Col. Gregory Pace, commanding

U.S. Marine Corps Lt. Col. Gregory Pace, commanding officer, 1st Maintenance Battalion, Combat Logistics Regiment 15, 1st Marine Logistics Group showed the spools of plastic that are used to create products using the 3D printers in the Expeditionary Manufacturing System with Gen. Robert Neller, Commandant of the Marine Corps on Camp Pendleton, Calif., May 24, 2016. The Expeditionary Manufacturing System is a mobile 3D printing and milling shop designed to provide quick turnaround for mission critical parts in deployed environment. (U.S. Marine Corps photo by Sgt. Rodion Zabolotniy, Combat Camera, Camp Pendleton/RELEASED)