• Eagle0110@lemmy.world
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        6 天前

        Which is awesome, but then it shouldn’t cost this much.

        Unless if it’s made of some of the actually ultra high performance plastics, like maybe polycarbonate or carbon fiber reenforced PA-6/PPA for example, but I highly doubt that’s the case

        • KickMeElmo@sopuli.xyz
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          6 天前

          carbon fiber reenforced

          Great for strength, bad for impact resistance. You’d want a non-filled material or at least less stiff filler. Something like aramid (kevlar) would give you good properties across the board for an application like this though.

          • scaramobo@lemmynsfw.com
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            5 天前

            Carbon fiber can’t handle impact? Nonsense! I’ve got a Stockton Rush paper right here proving otherwise! He even built a whole submersible to go down to the titanic. Next thing you say it won’t handle pressure cycling either? Poppycock!

            (/s obviously)

          • jawa21@lemmy.sdf.org
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            5 天前

            I have machined a lot, and I mean a lot of aramid filled materials of different kinds in a lot of situations. There is no way, under any circumstances I am letting that stuff near a drinking vessel I actively use, even if it is properly sealed. That shit is like hell on earth to be exposed to.

            • KickMeElmo@sopuli.xyz
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              5 天前

              Fair, though I wasn’t thinking of machining in this case. But yeah, my experience isn’t generally related to food safe stuff, so I don’t always think about it. Not too much concern about that on subs, helicopters, jets, etc.

        • stom
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          6 天前

          Pa6 I believe. Food safe, microwave safe, etc.

          But still plastic.

  • LogicalDrivel@sopuli.xyz
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    5 天前

    For almost a hundred bucks, I expect this to be high quality and made ceramic or double walled vacuum sealed stainless steel. This looks worse than what some higher end 3d printers can do in a few hours.

    • poke
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      5 天前

      I would not recommend drinking out of anything 3d printed.

      • Corkyskog
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        5 天前

        You would probably put a metal insert into it.

        • CheeseNoodle@lemmy.world
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          5 天前

          On that note PLA is food safe anyway, the reason you don’t drink out if it is the layer lines create an environment for bacteria so with finishing and cleaning you wouldn’t even need the insert, in theory anyway though I’d still use one.

          • poke
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            5 天前

            Huh, good to know. Thanks!

  • Evotech@lemmy.world
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    6 天前

    I get them, niche shit is going to be expensive when you make them this way (high quality molds)

  • filcuk@lemmy.zip
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    5 天前

    There’s a lot of armchair experts on manufacturing here.
    No it can’t be 3D printed, that will never beat injection molding in this use case.
    You must be living on the moon if you think this can be made from ceramic/steel for $50.
    Sorry but yall haven’t got a clue

  • Tikiporch@lemmy.world
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    5 天前

    Oh, damn. I thought it was $85 for all four. I would have maybe laid down that, I am a Lord of th Deep after all. But I didnt know they were plastic…