ISRO's breakthrough '3D-printed' rocket engine saves 97 pc raw materials, 60 pc production time

​​The new engine, now a single piece, saves 97 per cent of raw materials and reduces production time by 60 per cent, ISRO said. ISRO achieved the major milestone with the successful hot testing of a liquid rocket engine manufactured through AM technology for a duration of 665 seconds on May 9, a release from the space agency said.