Staff Sgt. Chynna Patterson, a 28th Maintenance Group additive manufacturing spray technician, and David Darling, the 28th MXG additive manufacturing site manager, wait for the VRC Raptor Cold Spray machine to heat up at Ellsworth Air Force Base, S.D., May 12, 2021. The cold spray machine was developed by VRC Metal Systems to be cost effective and capable of restoring aging aircraft components. (U.S. Air Force photo by Airman 1st Class Quentin K. Marx)