Well, we are in a new age: World’s first 3D-printed metal gun, solves problem of gun exploding on you when you use it

The current metal printer that is used here is a very expensive machine.  I have seen ads for some running up to $50,000.  While I can't tell from the article exactly how much the printer here cost, that price is surely seems plausible.  From Fox News:

Depending on who you are, where you hail from, and where you stand on guns, 3D printing and related issues, this bit of news will either thrill and astound you, terrify you, or compel you to say “meh.”  
But here goes: A company by the name of Solid Concepts has made the world’s first metal gun using a 3D printer. 
Based out of Austin, Texas, the 3D-printed metal pistol made by Solid Concepts is based on the Browning 1911 firearm. Solid Concepts set out to make this gun in an effort to prove that they can make weapons that are fit for “real world applications.”  
To make the gun, Solid Concepts utilized a manufacturing process known as direct metal laser sintering, or DMLS. DMLS is a 3D manufacturing process used to make metal parts for the aerospace and medical industries. The application for DMLS in the latter example is specific to surgical tools, meaning it’s perfectly suited for the creation of precision firearms.  
“The whole concept of using a laser sintering process to 3D Print a metal gun revolves around proving the reliability, accuracy, and usability of 3D Metal Printing as functional prototypes and end use products,” says Solid Concepts’ vice president of additive manufacturing Kent Firestone. “It’s a common misconception that laser sintering isn’t accurate or strong enough, and we’re working to change people’s perspective.” . . .
My take on the impact of these guns is available here.  Prices are dropping rapidly.  For 3D printers that don't deal with metal the prices have already dropped dramatically.  In 2007, the first consumer 3D printer later this year for $4995.  Now we see prices such as this: "That goal came one step closer to realization in early May 2013, when office supply retailer Staples announced that it would be selling a $1,300 printer from 3D Systems, making it the first major retailer to do so."  More on prices falling available here.
The new printed gun also solves an important problem of blowing up in the users hands.  This gun had no problem firing 50 rounds.  From Computer World:
Solid Concept said its gun's barrel experiences chamber pressure above 20,000 psi every time the gun is fired. By comparison, a factory-made M1911 pistol is rated for 17,000 psi chamber pressure. . . .



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