Marine Corps Cpl. Rory W. Lange, assigned to the 2nd Battalion, 8th Marine Regiment, 2nd Marine Division, fly a 3-D printed unmanned aircraft system at Camp Lejeune, N.C., Sept, 2017. The drone was created through 3-D printing to be low cost, easily repaired and have simple maintenance. Marine Corps photo by Cpl. John A. Hamilton Jr.