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Print your own gun

Jimmysal

Monkey
Mar 26, 2010
238
0
Vermont
Ok, except that the thermoplastic printing from a reprap or even their "professional" style rapid prototyping machine puts out parts with marginal tolerances and ****ty material properties full of stress concentrations. Neither of which you want in a firearm. Frankly, I'd expect such a device to fail catastrophically. There's a reason they're called rapid PROTOTYPING machines. More often than not, you use them to make a place holder part to check assembly interference, operation, or visual elements of design. Furthermore, "printable gun" is a terrible misnomer. You can't print a firing pin, a spring, a solenoid, or a barrel.

Not to mention the fact that this would prompt governments of countries in which these rapid prototyping machine suppliers operate to regulate the machines. Sort of like how color copiers won't copy money. I could also see it leading to regulation of file sharing.

Information should be free, but this is a bad idea.
 
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IH8Rice

I'm Mr. Negative! I Fail!
Aug 2, 2008
24,524
494
Im over here now
and thats that.
Cody Wilson planned in the coming weeks to make and test a 3-D printed pistol. Now those plans have been put on hold as desktop-manufacturing company Stratasys pulled the lease on a printer rented out for Wiki Weapon, the internet project lead by Wilson and dedicated to sharing open-source blueprints for 3-D printed guns. Stratasys even sent a team to seize the printer from Wilson’s home.
http://www.wired.com/dangerroom/2012/10/3d-gun-blocked
 

H8R

Cranky Pants
Nov 10, 2004
13,959
35
Years ago SRL made a weapon that shoots beer cans full of concrete with CO2 charges. It's remote operated too, with a helmet movement targeting system.


I want one.


Pauline: I was just running our high-pressure air launcher last week. We have a lightweight armature with two hi-8 camera viewfinders that fit into your eyes with eyecups. There's a set of servos that turns your head into a big joystick operation, so that when you move your head the machine points wherever you look. On the machine is an air-launcher that uses high pressure CO2 to fire a beer can filled with concrete, an explosive, and a contact detonator at about 550 feet per second. There's a cross-hair at your focal point, and when you line that up with the target, you fire, and it just obliterates it.
http://www.srl.org/interviews/out.of.control.html
 

jonKranked

Detective Dookie
Nov 10, 2005
85,975
24,528
media blackout
yeah, i wouldnt think the barrel would be able to take more then one, maybe two, shots. all the other internal parts, besides a springs, wouldnt be an issue
i read a bit about this, even if the appropriate permits are obtained, it would still possibly be in violation of the undetecable firearms act.
 

wreckedrex

Monkey
Feb 8, 2007
137
0
Fremont, CA
You don't need a firing pin to flash it in traffic. (And be shot by an officer shortly after.)
You don't need a 3d printer to paint a toy gun black which would net you the same result. If you were actually evil and trying to build an undetectable gun you could've used a cheap bench top milling station to cut a plastic one (that would stand a significantly higher chance of working) in your garage 20+ years ago. I don't really see why there's a story here.
 

norbar

KESSLER PROBLEM. Just cause
Jun 7, 2007
11,369
1,605
Warsaw :/
You missed this part

Still, that would go further than the partly plastic AR-15 rifle produced by blogger and gunsmith Michael Guslick. Also known as “Have Blue,” Guslick became an online sensation after he made a working rifle by printing a lower receiver and combining it with off-the-shelf metal parts.