GE has unveiled its previously-announced 3D metal printer, suitable for making aircraft parts. At the manufacturing trade show formnext in Germany, the GE Additive team revealed the as-yet-unnamed machine, demonstrating its ability to print parts as large as 1 meter in diameter directly from a computer file. Using additive manufacturing technology, the machine fuses together thin layers of metal powder with a 1-kilowatt laser. (www.engadget.com) 更多...