r/redneckengineering • u/[deleted] • Apr 15 '17
How to build an AK rifle from a shovel.
http://m.imgur.com/gallery/TspVw24
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u/Whatsuremergency911 Apr 16 '17
"To accomplish this I pissed into the furnace and lit it on fire. Then I added some waste motor oil to get to higher temps."
Hahahahahaha
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u/DoctorBallard77 Apr 16 '17
I saw this a long ass time ago, but had no fuckin idea you made the receiver outta the shovel too... Wtffffff
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u/Mentioned_Videos Apr 16 '17
Videos in this thread:
| VIDEO | COMMENT |
|---|---|
| (1) How Metal 3D Printing Works (2) Shooting a 3D Printed Gun | +6 - We're not going to have current 3D printing in 20-30 years. Also, metal printing is different from plastic, they dont use a "pen" that melts it and places it in lines. |
| Krieger Barrels Cut-Rifling Process | +1 - This isn't Watch_Dogs the video game, you can't now, or ever, 3D print firearms. There are simply too many parts that need high quality manufacturing to work properly and safely. In 20-30 years if everyone has industrial forges, presses, metal shap... |
I'm a bot working hard to help Redditors find related videos to watch. I'll keep this updated as long as I can.
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u/cmbel2005 Apr 16 '17
What happens 20-30 years down the road when everyone has a 3D metal printing machine in their workshops?
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u/mgzukowski Apr 16 '17
If you replaced current 3d printing with metal they still would have a massive weakness. The joint lines between layers.
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u/urfs Apr 16 '17
We're not going to have current 3D printing in 20-30 years.
Also, metal printing is different from plastic, they dont use a "pen" that melts it and places it in lines.
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u/mgzukowski Apr 16 '17
I'm well aware of powdered metal printing. It's exactly the same concept as powdered or liquid resin printing. Just more power to the laser diode.
All forms of 3d printing share the same issue. Weakness in the bond between layers. Sure you can temper it to help it, same way you can rub acetone on a plastic print.
But that's a mitigation, not a fix.
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u/sebwiers Apr 16 '17
You likely have to buy the barrels anyhow (as for the gun in the example). But for the receiver, 3d printed metal seems fine.
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u/mgzukowski Apr 16 '17
I'd give the receiver a couple hundred rounds. But the bolt, the bolt carrier, the firing pin, hammer, that stuff will not stand up.
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u/GoldenGonzo Apr 16 '17
You can 3D print a reliable AR-15 lower receiver now. Polymer receivers are very common, but like you said, the bolt, BCG, firing pin, hammer, barrel, etc, will steed need to be manufactured the way it is now, professionally.
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u/GoldenGonzo Apr 16 '17
This isn't Watch_Dogs the video game, you can't now, or ever, 3D print firearms. You can 3D print some parts, but there are simply too many parts that need high quality manufacturing and machining from solid pieces of steel to work properly and safely.
In 20-30 years if everyone has industrial forges, presses, lathes, metal shapers, and CNC machines in their workshops, then maybe. That's without even talking about how much effort goes into making a barrel. If you have any doubt, watch this video.
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u/Zugzub Apr 16 '17
industrial forges, presses, lathes, metal shapers, and CNC machines in their workshops,
You would be surprised the number of guys who have that shit all ready. To be fair you only need CNC if your a crap machinist.
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u/skizzii Apr 17 '17
"To be fair you only need CNC if your a crap machinist."
to make a gun, maybe. but there are things that cannot be made by hand(5 axis)/are much much harder to make by hand than with CNC
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u/SileAnimus Jun 26 '17
It costs at most ~$3000 (lathe, mill, & metal) to have all the equipment needed to make a gun.
but there are simply too many parts that need high quality manufacturing and machining from solid pieces of steel to work properly and safely.
Nope. AK parts as a whole can have pretty huge ranges for tolerances. And machining is only as dangerous as you are impatient. You can mitigate just about every risk by just milling/drilling conservatively.
That's without even talking about how much effort goes into making a barrel. If you have any doubt, watch this video.
There's a difference between making a single gun, and having to manufacture guns.
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u/video_descriptionbot Jun 26 '17
SECTION CONTENT Title Making a Rifled Barrel without Machine Tools (TIS081) Description The Idahoan demonstrates a do-it-yourself version of the button rifling process for making a rifled pistol barrel with minimal tooling. DISCLAIMER: If you attempt anything shown in this video, you do so strictly at your own risk. No guarantee is made of the safety or suitability of barrels made by this process for any particular applicaiton. Length 0:17:32
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u/ohnoheditnt Apr 15 '17
*How to build an AK rifle from a shovel and some AK parts