HAMILTON, Ohio (AP) — President Joe Biden is pledging that 3D printing technology will help return factory jobs to the U.S. and reduce inflationary pressures. He went to Hamilton, Ohio, today to highlight commitments by five major U.S. manufacturers to boost their reliance on small and medium American firms for 3D printing. GE Aviation, Honeywell, Lockheed Martin, Raytheon and Siemens Energy have agreed to take part in the program. Biden is pressing Congress to approve a stalled competition and innovation bill that the Democratic president says is critical to bolstering domestic manufacturing and which could help solve a semiconductor shortage.