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-   -   It's Finally Here (https://www.calguns.net/calgunforum/showthread.php?t=715709)

JDay 03-02-2013 12:04 PM

It's Finally Here
 
A 3D printed AR-15 lower that holds up under fire.

Quote:

“The actual count was 660+ on day 1 with the SLA lower. The test ended when we ran out of ammunition, but this lower could easily withstand 1,000 rounds.”
http://arstechnica.com/tech-policy/2...er-600-rounds/


killshot44 03-02-2013 2:33 PM

Too bad you can't print barrels......

Because you just torched the rifling right outta the first few inches of that one.

As for testing a Lower, firing it puts no stress on it.
How about seeing how many times you can put in and take out the pistol grip screw, the take-down pins and the buffer assembly? That'd be more relevant to testing its strength.

JDay 03-02-2013 2:43 PM

The first lower they test fired lasted 6 rounds before the section that holds the buffer tube snapped off. Test firing does stress the lower.

http://www.nbcnews.com/technology/fu...part-1C7404226

http://msnbcmedia.msn.com/j/streams/...top_medium.jpg

ott1 03-02-2013 3:26 PM

Looks like they beefed up the areas around the buffer tube and the upper part of the lower receiver.

JDay 03-02-2013 3:33 PM

Quote:

Originally Posted by ott1 (Post 10695563)
Looks like they beefed up the areas around the buffer tube and the upper part of the lower receiver.

They did some stuff with the takedown pins too.

cjskalka 03-02-2013 4:31 PM

Hmmm, I wouldn't consider SLA the same as 3D printing.

highcenter 03-02-2013 4:45 PM

edit

JDay 03-02-2013 5:13 PM

Quote:

Originally Posted by highcenter (Post 10696070)
Having a 3D printed lower, nice. Having a 3D printer of your own, much nicer...

You can get one for the pre-panic price of a DD rifle, ~$1200.

Guard66 03-03-2013 2:51 AM

Wait, you guys actually used that 3D printing technology that to make this? That's wild! I thought the original designers were having some big dispute with people aboutusing their product to make weapons. Just imagine in the future the weapons anyone will be able to print. :)

GoingPro 03-03-2013 3:32 AM

looks like if there is a ban.... doesnt look like we will have much of a problem with getting our things we need.

GoingPro 03-03-2013 3:33 AM

Things will be expensive though. :)


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