Air Force Airman 1st Class Christopher Young, a 3rd Munitions Squadron munitions support equipment maintenance crew chief, uses the 3D printer in the Arctic Spark Lab at Joint Base Elmendorf-Richardson, Alaska, Aug. 26, 2021. Young invented a tool called the Young Punch that helps maintainers safely and efficiently apply grease caps to their MHU-141 munitions trailers and 20MM Universal Ammunition Loading Systems.

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Photo credit: © Operation 2021 / Alamy / Afripics
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