• lightnsfw@reddthat.com
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      9 months ago

      Just cut up the model into a million smaller parts and post them on thingiverse so everyone on that site that already has a 3d printer can print one out and mail it to baltimore. EZ

      • FiniteBanjo@lemmy.today
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        9 months ago

        And even then, the filament needed at this scale will take another several years, and a few days for shipping.

        Also, it doesn’t do well in sunlight or high humidity for prolonged periods of time, so we’ll need maybe 20 to 30 years to work out a solution for that problem.

        • IrritableOcelot@beehaw.org
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          9 months ago

          I can only assume they’re trying to talk about concrete 3D printing, but oh boy is that not ready for anything which needs strength.

            • out@lemmynsfw.com
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              9 months ago

              Well as far as I know, it’s impossible to 3D print concrete with rebar and that should tell you enough about its strength.

              • CanadaPlus@lemmy.sdf.org
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                9 months ago

                Yeah, but how much worse than normal unreinforced concrete? (Which is actually fine if you aren’t worried about tension)

    • Zacryon@feddit.de
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      9 months ago

      To be fair, you don’t need a very huge 3D printer for that, if you divide it into a lot of smaller parts which can be assembled later.

      Idk, if we can already print steel though and whether we can make it structually sufficiently stable.

      • intensely_human@lemm.ee
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        9 months ago

        So our proposal is we prefab a bunch of metal pieces and assemble them on-site?

        As opposed to our current method where we carve bridges out of a big block of metal?

        • CatOnTheChainWax@lemmy.today
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          9 months ago

          Seriously, how we make bridges now with giant CNC machines is so inefficient! And all these people saying we should print lots of blocks to put together are totally forgetting about Legos, we all just need to donate our old Legos to Baltimore and let kids from anywhere come volunteer to build it. Free bridge and free child labour! Everyone wins

        • teawrecks@sopuli.xyz
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          9 months ago

          Well no, you put a conveyor belt in front of all the 3d printers, and when each part is done, it’s dumped onto the conveyor belt, which leads all the pieces to an AI powered robot arm which assembles the bridge.

          Yeah, I guess you could just run the conveyor belt and arm all the way to where the bridge needs to go.

          All problems can be reduced to Factorio.

        • Zacryon@feddit.de
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          9 months ago

          Hahahaha absolutely. :D The difference is, that they come from a 3D printer and that’s cool.

      • hascat@programming.dev
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        9 months ago

        I find it difficult to believe that breaking down steel to be 3d printed into large structures for a bridge is faster or more energy efficient than casting the parts instead.

      • Skua@kbin.social
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        9 months ago

        We can indeed print steel with direct metal laser sintering. I think that the object needs heat treatment afterwards, though to be fair it is almost ten years since I properly read up on it and things have probably advanced since then

      • CanadaPlus@lemmy.sdf.org
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        9 months ago

        Maybe, we could just print off rectangular prism-shaped modules, around the right size to fit in a hand, and then assemble them on site. We could even make them out of ordinary clay and fire them for strength. I wonder why nobody has thought of that. /s

        3D printing has it’s place, but more conventional methods have theirs too. If you are counting on a lot of human labour anyway you might as well not reinvent the wheel.

    • jarfil@beehaw.org
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      9 months ago

      The “lifting” is done by hand, while making fake crane noises… then placed onto a map.

    • Malgas@beehaw.org
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      9 months ago

      He did specify a large 3D printer. So it might be 2 or even 3 feet in length.

      • CanadaPlus@lemmy.sdf.org
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        9 months ago

        There are experimental construction printers that use concrete. Unreinforced, expensive specialty concrete, though, and it looks like they take more than a day to run on something big. And I assume sometimes fail like every other printer.

        I’d also like to see the pitch on GoFundMe. “Yeah, we actually do have tax collection powers, but we thought it’d be better if you specifically paid for this. Lines are open”

        • I Cast Fist@programming.dev
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          9 months ago

          Don’t forget the pitch is “free to taxpayers”, so you gotta tax kindly ask for money from people who aren’t paying taxes and most likely will never use said bridge.

          “Help us fund the next bridge disaster!” Is certain to attract money

  • Annoyed_🦀 @monyet.cc
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    9 months ago

    I mean i can make a plastic bridge too, doesn’t mean it will last.

    You can’t just “print” a steel bridge and expect it to not snap the second day it open to public, it ain’t sci-fi.

    • juliebean@lemm.ee
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      9 months ago

      second day you say? why, by then we can have the second backup bridge designed, printed, and installed next to the first, so that is not a problem. every two days, a new bridge.

    • jmcs@discuss.tchncs.de
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      9 months ago

      You probably could make a 3rd printer capable of printing the steel components for a bridge. If you pour enough money and time down the drain, there’s no reason why you couldn’t have some robots handling the scaffolding and “3D printing” the concrete too. It would be several¹ orders of magnitude slower and more expensive than using the normal processes, but hey why build 10000 bridges when you can build just one that tech bros can masturbate to.

      ¹ this “several” is breaking the world record of heavy lifting

  • Auzy@beehaw.org
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    9 months ago

    Every time I hear someone say AI, I know for sure they have no idea what they’re talking about and are about to grift people

    • shea@lemmy.blahaj.zone
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      9 months ago

      That’s a great instinct to have in the current landscape, but keep in mind the rise of machine learning is happening. And there are a few really cool and good use-cases for it. So it might be a hindrance to yourself to automatically throw out anything to do with “AI”, you might find something cool to use it for.

      For instance, as a hobbyist graphic designer, I use a local instance of Stable Diffusion these days instead of Photoshop to make quick photo edits, saving me hours of manually masking out objects and filling in the blanks.

      • Banzai51@midwest.social
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        9 months ago

        It’s ok. 99% of the AI articles are about how AI is going to kill us all with the proof being the movie Terminator.

  • harrys_balzac@lemmy.dbzer0.com
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    9 months ago

    This is the kind of person who thinks you can grow and sell a million tomatoes in one year. It’s all about “the hustle” - physics and reality be damned.

    • jarfil@beehaw.org
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      9 months ago

      You can grow a million tomatoes alright, what you can’t do is sell them:

      • 30% will be misshapen, so you’ll have to throw them away
      • 40% will have some blemish, arrive a day too late to the market, or just be the wrong color and no shop will buy them… but you might be lucky and sell ½ of them for katchup and similar, so that’s another 20% getting thrown away
      • 10% (⅕ of the remaining ones) will not get chosen by buyers, and go bad, so… whatever, that’s the shop’s problem now 😁!

      Congrats, you just sold 500 thousand tomatoes!

  • reddwarf@feddit.nl
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    9 months ago

    Forget the technical BS of this moron, lets focus on the gofundme nonsense.
    So I pay into this gofundme thing and that makes me partial owner of that bridge, just like the others who participated. In what fantasy world do you live if you think that bridge will not be blocked for all others who did not participate? Will the people out of the kindness of their hearts allow others to cross that bridge?
    If you believe that this bridge will not cause people to throw hissyfits and consider it private then I have a bridge to sell you 😂

    • GBU_28@lemm.ee
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      9 months ago

      Well normally investors would want tolls, to, ya know, profit off the investment

    • 📛Maven@lemmy.sdf.org
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      9 months ago

      No, you see, you just get every citizen to pay a little bit into the bridge, and then everyone can use it. Maybe we put some of that money aside and establish a group of people to care for the bridge, upkeep and whatnot. It wouldn’t be fair to just pick them arbitrarily, so we should probably hold some kind of vote. And, well, I guess the money will run out, so maybe we take a little more from everyone every year, just to keep it in good shape

      Huh? That sounds like what? Gov–

      Oh fuck wait shit i mean DONT TREAD ON ME

      • Facebones@reddthat.com
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        9 months ago

        I live near the projects (no judgement, I had my stint in the pjs) and there’s a dude who lives there who flies a “don’t tread on me” flag. Guess he doesn’t mind treading so long as it’s paying his rent though. 🤔

        He recently upgraded it to the “thinly veiled let’s overthrow the gubmint insurrection 1776” flag. It makes me want to drop a note in his mailbox asking who will pay his rent if he overthrows the govt?

        • Synnr@sopuli.xyz
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          9 months ago

          Yeah but he’s just a temporarily inconvenienced billionaire, the rest of these welfare queens are out here collecting rent and sitting around all day. They don’t need the money like he does. As soon as he gets a job, he’ll hustle that first billion in no time.

      • grrgyle@slrpnk.net
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        9 months ago

        Hmm maybe everyone should be responsible for their OWN bridge, just so it’s not socialist.

  • BeigeAgenda@lemmy.ca
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    9 months ago

    If the AI can design and build a bridge in two days, the AI should also be able to secure the finances in a day!

      • tetris11@lemmy.ml
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        9 months ago

        The secret is to spawn multiple AIs to bump the stock, and then for the first AI to cash out early, leaving the other AI instances penniless. Somehow this results in a net positive.