The largest U.S. civil works component produced by 3D printer was printed by Lincoln Electric for use in the Poe Lock ship arrestor rehabilitation project at the Soo Locks in Sault Ste. Marie, Michigan. Lincoln Electric and USACE developed an additive print strategy to print the part in two pieces, one approximately 4,000 pounds and the other 2,000 pounds, made from high-strength, low-alloy steel (HSLA), then weld them together at their Baker Industries facility located in metro Detroit.