MCSC teams with Marines to build world’s first continuous 3D-printed concrete barracks - Marines from I Marine Expeditionary Force monitor the computer while the world's largest concrete 3D printer constructs a 500-square-foot barracks hut at the U.S. Army Engineer Research and Development Center in Champaign, Illinois. Marine Corps Systems Command conducted the field user evaluation in mid-August to inform future requirements for cutting-edge technology and autonomous systems. (Courtesy photo)