Ingersoll 3D-prints a 22-ft. tool for making helicopter blades in 75 hours

Bell Textron Inc. and Ingersoll Machine Tools Inc. partnered to additively manufacture a 22-ft.-long vacuum trim tool used to make rotor blades for helicopters. The tool was produced at Ingersoll’s Rockford, Ill., facility on the company’s large-format MasterPrint, a gantry-style hybrid machine...

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