MAYPORT, Fla. (June 9, 2021) Lt. Cmdr. Jake Lunday, engineering duty officer at OPNAV N4 and additive manufacturing analyst, uses 3D-printing software while supporting Naval Station Mayport's Southeast Regional Maintenance Center (SERMC). SERMC provides surface ship maintenance, modernization and technical expertise in support of the ships and facilities on base. (U.S. Navy photo by Mass Communication Specialist 3rd Class Austin Collins)