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wow this tech. is unbeleivable!

by sloanjim
17 replies
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3D printing....see this video.

Nick Hodge's Early Advantage
  • Profile picture of the author tagiscom
    Cool, but l would want to see a close up of the glass in the car! It should look like a lego set up close, or when the light reflects a certain way!

    The tech, is impressive, but it is sure to have some issues!

    Shane
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  • Profile picture of the author seasoned
    Well, glass is impractical. It is likely some type of plastic, like plexiglass. If things are controlled properly, it wouldn't be like legos.

    You DO make a good point though. It has to cure SO fast that it is practical but SO slowly that it is workable. Plastic, for example, would bleed and possibly become a big liquid mess if it cured too slowly. It would become brittle and "lego like" if it cured too quickly. look at how they pour basements for homes. Cement cures too slowly, so it is impractical. You can't do it. SO, they create forms, and pour into THERE! The forms hold it in place while it cures.

    Steve
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    • Profile picture of the author Daniel Evans
      I've been aware of this for some time but I didn't realize it was so advanced.
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  • Profile picture of the author RyanEagle
    In all honesty, 3D printing is going to be (in some cases already is) one of the biggest technological advances of our time. I'm excited to see how it effects our daily lives in just the next few years.
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    • Profile picture of the author tagiscom
      Well, glass is impractical. It is likely some type of plastic, like plexiglass. If things are controlled properly, it wouldn't be like legos.

      You DO make a good point though. It has to cure SO fast that it is practical but SO slowly that it is workable. Plastic, for example, would bleed and possibly become a big liquid mess if it cured too slowly. It would become brittle and "lego like" if it cured too quickly. look at how they pour basements for homes. Cement cures too slowly, so it is impractical. You can't do it. SO, they create forms, and pour into THERE! The forms hold it in place while it cures.

      Steve
      Yeah, they may inject molten glass beads together, but getting it to look flat or finished would be the tricky part!

      Hmmm, l did some research they seem to use Nylon, and as l thought use a preproduction method to get it looking flat.

      So it is more likely the car was done in separate processes and put together. Still impressive, but it obviously didn't spring to life from a massive container of white powder!

      Pity! :rolleyes:

      Shane
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      • Profile picture of the author seasoned
        Originally Posted by tagiscom View Post

        Yeah, they may inject molten glass beads together, but getting it to look flat or finished would be the tricky part!

        Hmmm, l did some research they seem to use Nylon, and as l thought use a preproduction method to get it looking flat.

        So it is more likely the car was done in separate processes and put together. Still impressive, but it obviously didn't spring to life from a massive container of white powder!

        Pity! :rolleyes:

        Shane
        Molten glass? The nozzle would hae to be small and open to provide the needed flexibility. If you had molten glass, the nozzle would have to be *******VERY******* hot! I doubt they could manage all the contradictory requirements. With the car, you guys don't seem to get it! You think they just printed the whole thing ASSEMBLED!?!?!?!!? "all the EXTERIOR COMPONENTS of the car, including the windows, were printed". The tiny printer didn't somehow MAGICALLY print that large car. It printed the FAR SMALLER pieces which were then assembled! And even if the printer were 6' by 5' by 10' it WAS tiny for printing such a car assembled.

        As for moving parts? Say you have 2 gears meshing together, as gears MUST. the substance must be sticky and semisolid, in order for one layer to blend into another. THAT ITSELF is impressive. But HOW do they get certain portions of certain layers to cure at EXACTLY the right moment? Failure to do so means that the gears would stick, and be WORTHLESS! and one wonders how they do cylindrical objects, let alone lying horizontal in mid air. GRANTED, they could fabricate supports, but selective curing is STILL a concern.

        And I keep going back to the term they used, EXTERIOR components! Why EXTERIOR? Most exterior components, especially those considered TRULY exterior, don't have moving parts.

        BTW did you know that MOST of what china is known for today was first AUTOMATED in the US!?!?!? TRUE! They have PRINTED circuit boards, and WAVE FLOW soldering and SURFACE MOUNTED devices, etc.... AND, "printed circuit boards" is a misnomer. And VLSI devices are INCREDIBLY complicated and like PCB on steroids, but THEY aren't printed. Both are PHOTOGRAPHED. And I doubt this printer could EVER compete with that. It would be far slower, less accurate, and dirty. Today, it is SO complex, that it is really impossible to do like anyway. Last I heard, the simpler circuts were SO complex that the mat, for a little .5" chip was about 64square feet! They then optically reduce that. And then they used XRAYs, because light wasn't good enough! Producing Integrated Circuits With X-ray Lithography Imagine, a tiny smoke particle scaled to our size would be like mount everest!

        Yeah, a single device to do ALL this sounds great, but I don't think it is possible.

        Steve
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  • Profile picture of the author Isaiah Coe
    I did hear about this a while ago on abc. Can't wait to see how this will impact the world.

    It's sound so odd though, what people are able to print. This maybe be bigger then the computer.
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    • Profile picture of the author seasoned
      Originally Posted by Isaiah Coe View Post

      I did hear about this a while ago on abc. Can't wait to see how this will impact the world.

      It's sound so odd though, what people are able to print. This maybe be bigger then the computer.
      Like it or not, it wouldn't even be CONSIDERED without the computer. In fact, there are really just three parts to it.

      1. The part that changes the 3d product into a bunch of 2d plot points. COMPUTER!
      2. The part that aligns and runs the nozzle. DNC device, used by computers to interact.
      3. The material used. Ironically, I think THIS is the tricky part.

      It really is ironic that the part that seemed the easiest, even 70 years ago now seems the hardest. The rest is a walk in the park! The technology has been usable for like 50 years! The BIGGEST difference now is more history, and it is a LOT cheaper.

      I saw this a LOT earlier too, but I always saw things that were one color, and they were all in pictures, so you couldn't look too closely or handle them. It basically showed how it COULD be done. After all, it HAS been decades, and they still don't seem to be using it, outside of like models(IIRC)

      Even CANDY, today, plays tricks to get around some of the problems this machine has. They will, for example, add a mixture that temporarily hardens a filling, or will freeze it, and then run it through a "chocolate enrober". IMAGINE! All that work! The machines ALONE are probably enough to bankrupt a young startup. and all that REALESTATE! I mean those machines have to be slow and are EXPENSIVE, so they make them huge so they can do a lot at once. But they have to do that to get the liquid or very soft contents into a piece of candy.

      Steve
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  • Profile picture of the author Antonio J.
    Like they said in the presentation;
    "Design, not products, would be moved around the world as digital files to be printed anywhere..."
    That will make internet even more significant.
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  • Profile picture of the author williambrown
    Amazing, simply amazing! I'd like to have something like this at home. I really like the idea. Nice technology!
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  • Profile picture of the author sloanjim
    iam sure in 10 years+ time they'll iron out all the problems and it'll keep getting better and better. Can't wait till they can 3d print a real person.....:-)

    Cool, but l would want to see a close up of the glass in the car! It should look like a lego set up close, or when the light reflects a certain way!

    The tech, is impressive, but it is sure to have some issues!
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    • Profile picture of the author tlangdon
      Was that an intential pun?

      Originally Posted by sloanjim View Post

      iam sure in 10 years+ time they'll iron out all the problems and it'll keep getting better and better. Can't wait till they can 3d print a real person.....:-)
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    • Profile picture of the author Kurt
      Originally Posted by sloanjim View Post

      iam sure in 10 years+ time they'll iron out all the problems and it'll keep getting better and better. Can't wait till they can 3d print a real person.....:-)
      I vote for a bunch of Jessica Albas!
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  • Profile picture of the author sloanjim
    where? LOL

    Was that an intential pun?
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  • Profile picture of the author sloanjim
    Pheeewwwww.....that would be some print out.

    I vote for a bunch of Jessica Albas!
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  • Profile picture of the author garyv
    My son's college is using 3d printers to restore the architecture on several of their older buildings. Very cool stuff...


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    • Profile picture of the author seasoned
      Originally Posted by garyv View Post

      My son's college is using 3d printers to restore the architecture on several of their older buildings. Very cool stuff...


      Integrative Learning in LCBAS: Spotlight on Old Main Restoration Project - YouTube
      So the PROTOTYPE was done using 3D printing. I guess they had it handy, and felt the DNC(HERE, called the SHOP BOT) would be too big or something.

      DNC(Digital numerical control) has been around for DECADES. In the mid 80s, I actually helped an engineer out with one.

      It is almost like a locksmiths key cutter except that, instead of tracing an existing key, it follows instructions in a computer. DNC refers to the METHOD of controlling, and not really WHAT is controlled. That engineer was working mainly with lathes. HERE, they are probably working with a router. MOST routers have a fixed bit, that is large, and follow a standard template. They replicate ONE pattern. Hook the lathe to an arm going across a platform, that can move in 2-3 dimensions from the piece, and make the blade smaller, and control it via DNC, and it could cut almost any design. THAT is obviously what they are doing with the shopbot here.

      Steve
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