Students at the have created a liquid rocket engine, similar to the kind used by space companies such as SpaceX , using 3D printing. The ‘SunFire' engine, developed by a team of engineers and science students, is the first metallic 3D printed liquid rocket engine to be built and successfully tested by students in the UK according to the university. The engine, which the university says is the most powerful student-built engine of its type, uses both fuel and an oxidiser rather than breathing in oxygen like a jet engine.

https://www.tctmagazine.com/additive-manufacturing-3d-printing-news/latest-additive-manufacturing-3d-printing-news/students-at-university-of-sheffield-break-record-with-3d-printed-rocket-engine/

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