3D printed AR-15 Fail

[Sicarius]

The 5.7 might be the wrong caliber for a printed lower. That buffer is super heavy...
Kevin

[bohoki]

I wonder how it would stand up to a bolt action 50BMG upper? They don't put the same stress on the buffer tower.

you crazy all the recoil force is placed on that since that is where the stock mounts

[Eddy's Shooting Sports]

3D printing is amazing, but if people start "printing" guns, the BATFE could simply redefine what the restricted component is.

In Germany the controlled component of a firearm is the barrel. They are serialized to the gun. If you want to buy a conversion kit, it requires the same permit as another gun. Frankly, this makes sense since the barrel presumably is to hardest component to make.

Try 3D printing a barrel....

[NorCalXJ]

LOL One day they will get it right

[spits55]

Very

http://www.calguns.net/calgunforum/showthread.php?t=652264

http://www.calguns.net/calgunforum/showthread.php?p=9858128

http://www.calguns.net/calgunforum/showthread.php?t=653651

[CSACANNONEER]

you crazy all the recoil force is placed on that since that is where the stock mounts

The forces from recoil are just compression and, that is limited since the upper receiver is right there. With a semi auto build, the forces from recoil and the forces from the buffer cycling beat the buffer tower in both directions. Even a .22lr upper is harder on a lower than a bolt action 50BMG is.

[nitroxdiver]

The forces from recoil are just compression and, that is limited since the upper receiver is right there. With a semi auto build, the forces from recoil and the forces from the buffer cycling beat the buffer tower in both directions. Even a .22lr upper is harder on a lower than a bolt action 50BMG is.

That's amazing. I would have never imagined that. My only 50 experience is on an M2. I need to get behind a 50 bolt gun someday. Thanks for the the info.


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[JNunez23]

Hmmm, interesting. .

[Rorge Retson]

This is the front end of something very powerful....

[Dannicus]

High end 3 D printers can make high strength metal parts. Google laser sintering 3 d printers.

[RAMCHARGER]

Could you print a new girlfriend to me. One that does not argue!.

[winnre]

When we can 3D print using titanium we will have something.

Didn't they print a steak recently?

[rolo]

Actually, they used a rather pricey Objet printer that uses a photopolymer. They ran into the same issue that I did with my ABS printed lower - namely, stress in the buffer tower.

Have Blue! Welcome to CGN! There are many of us who have been following your progress and appreciate your publication of it. Given the readership and political situation in California, your posts here would be a welcome resource.

Did you ever apply the carbon fiber fix to your buffer tower?

[Dannicus]

When we can 3D print using titanium we will have something.

Didn't they print a steak recently?

Done...