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  • Jun 23, 2014
    Commentary

    In a world ... without harnessed electricity ... TESLA

    Nikola Tesla was the greatest inventor of the 19th and 20th centuries, and some aim to give him his due credit at last....More
  • Jun 13, 2014
    Commentary

    Mainstreaming alert: 3D-printed parts in GE engines and X-ray machines

    When General Electric puts metal 3D-printed parts in its X-ray machines, you know it's gone mainstream. That's what the research summarized in this year's Wohler’s Report on 3D printing also suggests. Here, I explain one application that proves how far 3D printing has come....More
  • Jun 5, 2014
    Commentary

    3D printing filaments better and cheaper and greener every day

    As we know, 3D printers make objects but eliminate the waste and high tooling costs of traditional manufacturing. Because the machines print parts off of CAD files, even weird or impossible-to-find parts are more affordable. The one catch: The filament used in the common mode of 3D printing — selective laser sintering (SLS) — can be expensive and limited in its ability to offer good material properties once fused into a part. But there's improvement....More
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