Photo: Robert MacPherson/AFP/Getty Images
For better or worse, it may soon be true that anyone with a computer and a 3-D printer could become a gunsmith. You can put together the Liberator handgun from parts churned out by a 3-D printer using designs available on the Internet. Within 48 hours of downloading the design, software engineer Travis Lerol (video) of Baltimore, Md., used his US $1300 3D Systems Cube printer and $30 in materials to make his own working pistol.










Willie Jones
Willie Jones is an associate editor at IEEE Spectrum. In addition to editing and planning daily coverage, he manages several of Spectrum's newsletters and contributes regularly to the monthly Big Picture section that appears in the print edition.
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