Posted on 01/23/2013 12:17:32 PM PST by Manta
Glen Beck has guest who has and is able to print AR-15 like machine gun. Video has link to youtube vid of weapon in use
http://defensedistributed.com/
if anything this makes magazines a pointless exercise in law.
This is about taking civil rights without due process.
Man, I knew you gun guys would be all over me like a cheap suit when i posted that link.
Bull!
Show me a printed barrel that can stand 50,000 CUP pressure on a sintered metal printer. You can't. It would fly apart after 1 shot.
Sorry, not trying to be mean. It's just that we see the same misinformation all over the place, and maybe we get a little tired of refuting it.
I'll try to be nicer, since I know you're not trolling :-)
In the video I mention above, he's using a printed mag... But I'd go dimes to doughnuts the rest of the rifle is a registered Class III and not one of his printed receivers.
Others have pointed out the lower is the firearm, but they didn't mention that you can, legally, make your own lower, for your own use, with no intent to sell (as long as ownership of said item is legal where you live). You can buy 80% lowers on-line, finish them yourself, and maintain the lower as your own, and it needs no serial number (but is recommended strictly for security purposes), doesn't have to go through an FFL, nor does it require a manufacturer's permit.
In addition to the auto sear, the design of the selector lever, hammer,disconnector and bolt carrier differ from the one in the commercial AR-15.
I’d bet they’re working on ‘regulations’, already.
http://gcn.com/blogs/emerging-tech/2012/10/will-3d-printing-be-regulated.aspx
I saw a new terminology for A-15s.
They are now called Modern Sportsmans Rifles.
Oh yea, that was many weeks ago. They are getting better at this by the minute.
I don't have any examples of that part specifically, but there is a lot of research being done on metal printing, since there is a lot of interest from aerospace. Instead of just sintering the parts together, there is other post processing now to make the parts stronger. Here is one example:
Also, the part can probably be cast metal, so we could use a sand printer to create the mold and just cast it:
Keep in mind that a person doesn't have to completely recreate a commercial model in its exact specifications. If a part needs to be stronger because the printed material is weaker, the engineer may just need to make the critical part thicker.
Awesome! Thanks.
Colt went so far as to change the trigger pin and receiver pin sizes to satisfy BATF and kiss the government's A$$ trying to maintain their government contracts.
Uphold Freedom of the Press! (We had that label on the Dake 50 ton press at the shop I used to work at).
I try to explain to people that guns are a 14th century technology - it isn’t splitting the atom. Gunpowder is made from very abundant minerals.
You can build a gun if you have a semi decent machine shop, like a place that mills engine parts or bores cylinders. I think the guy who made the MAC-10 worked out of a quonset hut.
Like passing a law against guns will make them go away. The mob will make them.
perhaps the government will mandate do not duplicate codes like the forced adobe and scanner makers.
You're slightly wrong on a couple points. First, with split upper/lower designs it's the lower that's serialized and controlled, not the upper, although the upper is more mechanically demanding and from an engineering (but not legal) perspective might be considered the more firearm-y part.
Second, no license is legally needed to make even the controlled portion of a firearm, as long as you're making it for your own use and it's not an NFA item (full auto, suppressor, destructive device, etc.). You can even sell or otherwise transfer them at some future date, so long as you're not selling them in a volume that would imply you're actually in the firearm manufacturing business.
Actually, I'd think the barrel is the choke point, manufacturing technology wise, which is why the morons chose not to make that the regulated part. D'oh! (from their POV) While yes, you can print metal, I'd think printed metal would tend to be weaker in ultimate tensile strength as well as more brittle than normal wrought stock. Printing WOULD make rifling a barrel a lot easier, though, if you can find an appropriate feedstock to print with. Right now, rifling is difficult, relative to the other tasks in gunmaking. Certainly for a small one man shop.
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