On today’s episode of Uncanny Valley, we discuss how WIRED was able to legally 3D-print the same gun allegedly used by Luigi Mangione, and where US law stands on the technology.

  • altphoto@lemmy.today
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    7 days ago

    No plastic can withstand the pressure and shock from the propulsion of the shot, nor the heat or the friction generated. The 3D printed whatever is a fallacy. The only thing you can print is cute things you can attach to whatever.

    • AntelopeRoom@lemm.ee
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      7 days ago

      You 3D print the frame, which is plastic on many modern pistols nowadays anyway. Then buy a barrel and a slide online, which don’t require a background check as they are not considered a firearm on their own.

    • theunknownmuncher@lemmy.world
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      7 days ago

      Uhhhh my friend you can print a 9mm CZ scorpion that shoots as well as the real thing. Same with an MP5. You can find videos of them being tested and shot on the internet. A lot has changed in the past few years with 3D printed guns.

      https://youtube.com/watch?v=kucefQ6sYbo there are silly videos too

      Of course, they are not 100% plastic, but that’s irrelevant. They can be made at home with little effort using a 3D printer and from simple materials anyone can buy at a hardware store, without any registration or serial numbers.

      A lot of “real” guns are made from plastic, too, btw

      • altphoto@lemmy.today
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        6 days ago

        Only the non critical to function parts can be plastic. IE, the barrel can’t be plastic. And you can use literally anything else other than 3D printed stuff.

        So why is 3D printed even an issue. Anything… A CNC, scissors, metal, a grinder, wood, springs, screws…can be made part of or be used to make anything else. Making things is not magic and a 3D printer is not magic either.

        The highest pressure rated plastic has a Ts or just maybe 28ksi. But with 15% elongation and a really weak modulus. So you can make toys basically.

        • mememuseum@lemmy.world
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          6 days ago

          In the United States, only the lower is considered a gun. There’s no check needed to buy the barrel or slide components, meaning you can print the lower, preferably from a fiber reinforced material, and just slap the unregulated upper components into it.

            • mememuseum@lemmy.world
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              6 days ago

              Nope, not kidding. the receiver is the component that is registered as a firearm, and the rest of the parts that go in it are unregulated. That’s also why you may have heard of “80%” receivers. They’re not machined all of the way so they are not considered firearms and the purchaser can then finish the machining and install the parts.

        • theunknownmuncher@lemmy.world
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          6 days ago

          only the non critical to function parts can be plastic

          This just isn’t reality. For .22lr, nearly 100% of the gun can be plastic, including the barrel. Here are two real examples where the only required metal component is the firing pin:

          https://www.cnet.com/news/politics/the-3d-printed-gun-controversy-everything-you-need-to-know/

          https://3dprint.com/107062/worlds-1st-3d-printed-revolver/

          For more reliable and more powerful guns, some critical components must be metal, of course, like the barrel might at least require a liner, but the majority of the gun and internal mechanism can still be plastic, not only non-functional or cosmetic parts.

          And you can use literally anything else other than 3D printed stuff. So why is 3D printed even an issue.

          Idk, I didn’t say it is. I’m just informing you that 3D printed guns are real, not a “fallacy”, some function very well and reliably, and can actually be made with almost no or minimal metal parts

          • altphoto@lemmy.today
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            6 days ago

            But the issue at hand is about regulating 3D printers. So how about HF CNC machines? Or lathe mill combos? What about resin?

            What about meat? It has vitamins and proteins to make some people really really strong… Enough to choke people with their bare hands! And they are allowed to freely walk among us and even ride the bus, train our plane! Protein is very dangerous stuff. I hear you can even 3D print it!

    • ArcaneSlime@lemmy.dbzer0.com
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      6 days ago

      Yeah, cute things like an unregistered glock 19 lower printed at a 45 degree angle out of pla+ you can attach to a trigger and rails via pins, rails that themselves connect to a glock 19 upper?

      Hmmm…

      • altphoto@lemmy.today
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        6 days ago

        That’s the rub, you can make that more functional with simple tools like hammer, pliers, shears, sheet metal, drill press, aluminum extrusion. None of those things are controversial or subject to regulations.

        • ArcaneSlime@lemmy.dbzer0.com
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          6 days ago

          If you’re looking to have an argument about regulations, I believe you’ll find I’m a poor choice. I support more relaxed regulations on the guns themselves than you likely do, much less regulating things that can be used to make guns. Suppressors should be seen as safety equipment rather than locked behind an antiquated tax, SBR/SBS should be removed from that same tax system not because of safety but simply because the NFA was bad and pointless from the start, people between the age of 18 and 21 still deserve their rights (OR we need to raise the age of legal adulthood to 21, including military service and trying people as an adult, but the mix-matched mess is nonsense), there’s more but that’s enough controversial opinions on regulation to make my point:

          Tl;dr I don’t support regulation of much, including any of that stuff you said. Fact still remains that printing a chairmanwon g19 is very, very possible. I won’t even bring up how much easier it is than learning how to use a lathe nor how much cheaper it is to buy an ender3 than a CNC mill.

    • thermal_shock@lemmy.world
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      6 days ago

      It’s a hell of a statement considering theres tons of videos and evidence that prove the opposite of what you just said.