Engineers at General Electric have created a tiny jet engine using 3-D printing techniques that they say could rewrite the rules for how components inside commercial turbine engines are produced.
The mini jet engine project was completed at GE Aviation's Additive Development Center outside Cincinnati. The lab focuses on developing additive manufacturing techniques that can produce complex 3-D structures by melting metal powders and laying them in super thin layers until something miraculous emerges.
In this case it was a foot-long jet engine, complete with fan blades and internal compressor, that they built over the course of "several years" to test the technique's capabilities.
Read more and see video at http://www.flyingmag.com/news/video-ge-builds-tiny-3-d-printed-jet-engine#SKfBbaaXYKZfqEE1.99