3D printed AR-15 Fail

[Chaozu]

Not sure if this is a dupe or not, but thought you guys might like this.

http://www.youtube.com/watch?feature=player_embedded&v=wuDCW_Rn5JI

[Merc1138]

Yes, it's a dupe.

[Moonshine]

3D printers are pretty cool, I have a crown in my mouth that was made on a 3D printer while I waited at the dentists office. I broke a tooth and was able to go in to the dentist and walk out the same day with a new tooth!

Now as for 3D printers used to make receivers I don't think there's strong enough material yet, but some day in the not too distant future it will create a fascinating 80% build landscape.

[jcwatchdog]

That's hardly a fail. That's like saying the Wright brothers failed with their plane because it didn't fly very high or very long. Considering what this was, it did well.

[DFF]

That's hardly a fail. That's like saying the Wright brothers failed with their plane because it didn't fly very high or very long. Considering what this was, it did well.

Agree.

I see it as more of a success than a failure.

[nitroxdiver]

Thanks for the post. I wasn't at all familiar with 3d printers. That video led to more on YouTube. Fascinating.




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[Seesm]

They will get it right soon enough...

[bohoki]

They will get it right soon enough...

maybe they need to make a design that uses simple things as reenforcements like nails

i wonder how it would have done with a 22lr conversion

[cgates]

3D printers are pretty cool, I have a crown in my mouth that was made on a 3D printer while I waited at the dentists office. I broke a tooth and was able to go in to the dentist and walk out the same day with a new tooth!

Now as for 3D printers used to make receivers I don't think there's strong enough material yet, but some day in the not too distant future it will create a fascinating 80% build landscape.

actually you do not have a 3D printed crown. your crown was milled out of a block of porcelain


too bad this one failed....soon enough this method may be a viable process to make a lower.

[Moonshine]

Like I said before 3d printers have the potential to make the 80% scene VERY interesting. Just imagine building your own Glock for starters and with RRA introducing their polymer 1911 it shows you can indeed make guns traditionally made out of steel frames from polymer frames as well.

[Donk310]

I think this guy is on to something.

[JoeJinKY]

He used a very CHEAP 3D printer and a cheap material to make that receiver. The cheap 3D printers use ABS plastic, not unlike lawn sprinkler fittings. An expensive 3D printer has the ability to use higher quality materials, and a receiver would NOT fail.

[Have Blue]

He used a very CHEAP 3D printer and a cheap material to make that receiver. The cheap 3D printers use ABS plastic, not unlike lawn sprinkler fittings. An expensive 3D printer has the ability to use higher quality materials, and a receiver would NOT fail.

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. Whereas in my case the issue manifested itself as slight flexing causing cycling issues with .223, the very low impact strength of the photopolymer used in their test (coupled with the fact that it was a very high resolution print, with nice sharp 60 degree thread profiles creating a number of stress risers) caused a material failure after a few shots (but flawless cycling until breakage).

Just because a printer uses ABS does not mean that it's cheap - the Fortus line of machines (which is what Detroit Gun Works uses) begin at $45000 and run ABS.

[CSACANNONEER]

Thread title fail. The prototype firearm functioned for a while unlike this thread.

[CSACANNONEER]

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. Whereas in my case the issue manifested itself as slight flexing causing cycling issues with .223, the very low impact strength of the photopolymer used in their test (coupled with the fact that it was a very high resolution print, with nice sharp 60 degree thread profiles creating a number of stress risers) caused a material failure after a few shots (but flawless cycling until breakage).

Just because a printer uses ABS does not mean that it's cheap - the Fortus line of machines (which is what Detroit Gun Works uses) begin at $45000 and run ABS.

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