Earlier this month, Valentin Stamate, a researcher with Transilvania University in Brasov, presented a prototype he developed of what he's calling the first 3D printed two-stroke airplane engine. Stamate has been working on his research at the university in Romania for the past four years; he was previously a member of the faculty for the Technological Engineering and Industrial Management department, but stopped teaching two years ago in order to focus solely on his research. Most of the parts for Stamate's prototype engine, such as the engine block, the muffler, the cylinder wall, the piston, and the connecting rod, were produced using SLM and SLS 3D printing processes, with steel and aluminum material and metallic bronze and steel powders. Read more at 3DPrint.com: http://3dprint.com/174963/3d-printed-airplane-engine/