U.S. Air Force Master Sgt. Scott Marshall, 19th Logistics Readiness Squadron NCO in charge of mobility readiness spares packages, loads filament into a 3D printer in Cabot, Arkansas, April 22, 2020. Now a member of multiple enthusiast groups, Marshall said 3D printing has always been a hobby of his — printing gadgets and figurines during his free time. (U.S. Air Force photo by Airman 1st Class Jayden Ford)