• Thoath@leminal.space
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    5 months ago

    Do you…drive a car? Rubber rubbing off from your tires onto the road is one of the main contribution (2nd highest) to ocean micro plastics as your tires are filled with them suspended in the tire…

      • randomblock1@lemmy.world
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        5 months ago

        It’s biodegradable in an industrial composter, and degrades in sunlight. Sure it’s not perfect, but compared to everything else its impact is minimal.

      • thisbenzingring@lemmy.sdf.org
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        5 months ago

        PLA doesn’t not hold up to the elements. sunlight breaks it down

        it turns to floppy noodle in summer heat

        do you even know anything about PLA?

        • Jumuta@sh.itjust.works
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          5 months ago

          sorry for spez site but here you go

          I use PLA all the time and I get that it degrades in sunlight, but every fucking plastic does. Degradation isn’t decomposition and you can still enjoy 3D printing while understanding that it’s not 100% environment friendly

  • JelleWho@lemmy.world
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    5 months ago

    Do you rather have me buying a complete new device than printiner a spare part with PLA (not derived from oil)?

    • 5in1K@lemmy.zip
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      5 months ago

      You see, injection molding in a factory and shipping it is far superior to printing it at home.

  • Carmakazi@lemmy.world
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    5 months ago

    What do you think the net pollution of Luigi’s alleged Glock and suppressor print is, all things considered?

    • snooggums@lemmy.world
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      5 months ago

      I’m not sure of the numbers, but it was a net positive for the public’s health even if the difference is fairly small.

    • Pennomi@lemmy.world
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      5 months ago

      Any 3D printed gun is carbon negative if used to take out virtually any human. People do not live sustainable lives.

    • bleistift2@sopuli.xyz
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      5 months ago

      The only thing that matters is if it’s biodegradable. If the plastic won’t break down naturally, it doesn’t matter if it’s made from starch or crude oil.

      Polylactic acid is a low weight semi-crystalline bioplastic used in agriculture, medicine, packaging and textile. Polylactic acid is one of the most widely used biopolymers, accounting for 33% of all bioplastics produced in 2021. Although biodegradable in vivo, polylactic acid is not completely degradable under natural environmental conditions, notably under aquatic conditions. Polylactic acid disintegrates into microplastics faster than petroleum-based plastics and may pose severe threats to the exposed biota.

      https://link.springer.com/article/10.1007/s10311-023-01564-8

  • MoreFPSmorebetter@lemmy.zip
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    5 months ago

    The fashion industry and the automotive industry are far and away the largest contributors to global microplastics. I’m not even sure if 3d printing people crack the top 100.

    The majority of the 3d printed slop people see around is printed in PLA because it’s the cheapest and easiest to print typically. PLA will completely degrade in a few months in the correct conditions. At worst it will still break down after a few hundred years.

    The more expensive and chemically complex filaments are a different story. The good news is that most people only print “useful” things with those more expensive materials. I have never seen anyone printing a Pikachu toothpaste poop dispenser out of carbon fiber reinforced nylon filament.

    Of all the things to be worried about in terms of micro plastics 3d printing really shouldn’t bother you. There are many MANY much larger fish to fry in that department first.

  • 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 @pawb.social
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    5 months ago

    The plastic filament I use can be near infinitely recycled and is also biodegradable, while being made from plant resin and not hydrocarbons. This shit will break down before it even gets a chance to be used if not stored properly.

  • CIA_chatbot@lemmy.world
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    5 months ago

    Look, you see the world around you? You think it’s worth saving? We had a good run, time to burn it down

      • CIA_chatbot@lemmy.world
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        5 months ago

        I’m hope you held a pinky up as you typed that so you could get the full “I’m better than everyone else” experience