• ApeNo1@lemm.ee
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    5 months ago

    Awesome. My dream of opening up a chain of niche drive through restaurants selling structurally dubious pieces of furniture in just minutes can finally come true.

  • EmilieEvans@lemmy.ml
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    5 months ago

    I don’t understand exactly what is novel about it. Maybe this is just another round of MIT PR doing it thing. Remember media publishing that MIT developed solar cells that also create energy during the night? Yeah. µW as they used heat stored during the day …

    Back on topic: Those machines are already in production environments. Most of them opt to use metal wire and laser (some an electrical arc similar to welding) instead of a molten material but they are more or less identical. If you go back a decade you will find people in the RepRap forum experimenting with solder wire as filament for FDM. To completely blow your mind: there are commercial printers available that do extrude liquid glass.

  • Smuuthbrane@sh.itjust.works
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    5 months ago

    So explain how this is better than sand casting? Which doesn’t need glass particles and can provide much better surface finish?

    • Bonehead@kbin.social
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      5 months ago

      With sand casting you still need a mold to form the sand. These molds aren’t easy to make, especially quickly. With this 3d printer, you can go from design to finished product long before the mold is constructed.

      • moody@lemmings.world
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        5 months ago

        There are also things that can be 3d printed that can’t be easily cast, like things with oddly-shaped holes, and hollow objects.

        This is the same as asking why 3d print something when injection molding exists.

    • rambos@lemm.ee
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      5 months ago

      Its not better probably, but I would rather have printed one because its more cool lol Seriously, casting have its own geometry limits compared to printing.

      • rambos@lemm.ee
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        5 months ago

        Well, I watched a video after writing that, so my post is bit stupid. It probably doesnt apply for single layer shapes like ones shown on the video, but it looks faster than sand casting. Adding Z axis would make it more powerfull tho

  • LarmyOfLone@lemm.ee
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    5 months ago

    Interesting. At first I missed the video. They “inject” the alumninium into the sand by pushing the nozzle in. A pretty neat idea really.

    Presumably it’s going to be patented though, so it won’t benefit many people for the next 20 years.

    • PipedLinkBot@feddit.rocksB
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      5 months ago

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