Lucas123 writes "The ATF has been testing 3D printed guns over the past year and, not surprisingly, has found that depending on the thermoplastics, 3D printers and CAD designs used, some can explode on the first attempt to shoot them. The ATF published videos this week of the tests on YouTube showing what looked like a Liberator model of a 3D gun exploding upon being fired. Another model, created with the popular ABS polymer and an advanced printer, could fire as many as 8 shots. The tests were published at a time when a law passed in 1988 banning the sale of guns made entirely of plastic is set to expire next month." I hope they post the videos when they do the same tests on Solid Concepts' 1911.