Posted on 02/26/2013 6:54:41 AM PST by marktwain
3D printed AR15 3rd Generation Ready for Download (600 rds, no wear)
Defense distributed announced that their 3rd generation of 3D printed lowers is ready for distribution. No one knows what the expected life of this lower will be, as it has been used to fire 600 rounds in rapid succession without discernible damage.
In the video, right and left handed shooters switch places while firing the test rounds in rapid semi-action mode. It is clear that the shooters are starting to suffer from hand fatigue from so much trigger action.
The lower receiver design has been reinforced. The upper used is a direct gas impingement type. I would expect that a piston driven design would also work, and might create less potential problems as there would be no hot gases ejected into contact with the lower receiver.
No one knows what the service life of this receiver will be, but 600 rounds without detectable problems is a good start.
Link to Announcement at KeepAndBearArms
Link to video
©2013 by Dean Weingarten Permission to share granted as long as this notice is included.
If the time ever came that this was all that was available, 600 rounds would be more than enough.
Heh.
The modern version of the WWII single shot "get yourself a real weapon" pistol.
I’ve heard about this kind of printing. (Insomnia-Coast to Coast). Last few nights they ran the show of the uber-smarty who kind of explained it.
We are in for some wild tech. Frankly....if everybody has a gun...I’m in. At least we can have a fair fight.
I’m sick of Down Low Barry and Shemale Evitawannabe....it’s getting rather clear they are prepping for cwII.
Sad....But, be prepared.
Don’t tell the US government, or they will want a database and background checks for 3D printers
I need to get some ammo ink cartridges for my printer...
"Defense Distributed's latest 3D printed AR-15 lower withstood 600+ nearly continuous rounds and still did not fail. Note: A direct gas impingement upper was used, not a piston (which diverts the hot gases out the front of the upper). The lower design was verified using a cheaper 3D printing technology - extruded ABS - and didn't show any signs of damage from shooting at a high rate of fire. 3D printed AR-15 lowers have arrived."
They must have strengthened the areas that failed before and looks like they can fire many more rounds out of the lower before failure.
This might sound a little silly, but for the techies out there - what about 3D faxing? Would it be possible to have an AR15 and 600 rounds faxed to someone?
“Don’t tell the US government, or they will want a database and background checks for 3D printers”
I’m sure your statement is tongue-in-cheek — or maybe not?
The powers-that-be must be watching the fledgling “print your own gun” movement with fear in their hearts.
Regardless how strict the laws limiting purchasing of guns and rifles become — what if folks could just download freely-available files, and print up weapons of their own?
I sense that as the “print-your-own” weapons movement burgeons, we’ll see increasing moves by government to restrict the sale of ammunition. We’re seeing that now in places like New York state, etc.
The “defense distributed” guys better be watchin’ their backs...
3-d printer is officially on my wish list.
bfl
A. To receive a “3D Fax” you’ve got to have a 3D printer. At that point the recipient just downloads the 3D data file and hits “Print”.
B. Ammunition cannot be generated by the 3D printing process, and probably never will be.
I'm sure there are savvy ones who are. Frankly I think that 3D printing is over the head of the average anti-gun political nabob. At some pont DiFi's staff will discuss them with her and she'll make an incoherant statement about "assault printers" that the press will breathlessly parrot.
That said, we should download the files ASAP. I suspect the first avenue of attack will be to pressure ISPs and host domains to shut down the 3D printing groups and file servers. A lot of them appear to be hosted by schools, and these are going to be very vulnerable.
we'll see about that. Propellant may be plasticized and extruded, y'know.
Maybe someone will figure a way to print detonators with it. They are the only really touchy and difficult part of explosives to make. Perhaps a printer that has two print “reservoirs” for dual based primary explosives, that mixed together give you what you want, in very precise, controlled quantities....
Here is a site that discusses 3D printers that can be used to print more 3D printers...
http://www.reprap.org/wiki/RepRap
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