Alexander Reed Kelly writes at Truthdig:
A new dimension is emerging in the battle between gun enthusiasts and their less-thrilled opponents. A 3-D printer, which is exactly what it sounds like, has been used to make parts for a firearm. The composite gun works, and the plans are available freely online.
Smithsonian reports that a person with the username HaveBlue posted pictures of the parts he or she printed on a forum for gun aficionados. “It’s had over 200 rounds of .22 through it so far and runs great! To the best of my knowledge, this is the world’s first 3D printed firearm to actually be tested,” HaveBlue wrote. He or she was proud to have survived the testing, saying: “No, it did not blow up into a bazillion tiny plastic shards and maim me for life – I am sorry to have disappointed those of you who foretold doom and gloom.”
Stratsys, the company that manufactures the printer that was used to make the gun is anxious over the development.