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"nas stratus" Discussed on 3D Printing Today

3D Printing Today

06:52 min | 2 years ago

"nas stratus" Discussed on 3D Printing Today

"Three D printing. Today's number two seventy-one testing color changes Z, height compensating, three D printer engineering book review. Come back to three D printing. Today, the podcast about all aspects of three D printing. Hobby professional industrial, it doesn't matter. We covered. All my name's Andy Cohen, I'm here, Mr. Whitney Potter high. You doing I'm doing pretty darn good. So we got this story out of Berkeley. Although I think it's also Lawrence Livermore, high call. Yeah. It's researchers at L L l and Berkeley, and they're talking of the articles out of three years, and they talk about using light that turns liquid into objects a right away like. Like all this LA the last word in the title is in minutes. Well, I could do it in you know, ninety minutes. Right. But I think the point is is they do it like within like, five minutes or less. So I went, and I read the article now this is like the third story. We have of what you could say is an innovative approach to an older process. And and I think they are trying to be innovative here. And basically what the way the article describes it is they have their own formulation of resin, which is oxygenated, by the way. And there's something about the oxygen being cross linked to the resin molecules that makes this possible something special about the resin, right? And they project an animation of the three D object rotating in three D. Okay. Into the resin. And they they rotate the containment right with the resin in there while they're doing this. And they say that they can get the three D image cured into the resin in three D in minutes. It happens like really really quickly. You see it in real time to some degree in their video. Although a what they show turns out to be something that doesn't look time lapse particular could be a time lapse, you don't see any cohesive shape, that makes any sense. So on the surface. It's like, oh boy yet another innovation that attempts to produce things at an incredibly fast rate from an getting away from the layer by layer from two to three D the peeling effect and the peeling affect so they're trying to innovate the trying to do something different. The results are far from acceptable there. There resolutions from. It's extremely rough resolutions really rough. The objects are very very tiny to they're very small on. So the the only thing I I'm glad that they're working on it. And I would hope that they continue to work on it. And if they perfect it, this could be incredibly valuable and make a lot of money. So do it. But I don't recommend you use the name replicator. That's true. It's interesting that that have is the three D printing world so old that people have sort of forgotten the past. I mean that one's been used people. I don't think they realized it which is weird. But I, but I think that maker bought NAS Stratus owns the name replicator one and replicator to and ripper guy. I don't think they own the name replicator. I guess this is just a just the nickname at this point. They're not there yet. Yeah. It's just the manufacturing anyway. And they name it after the Star Trek replicator, which is what I think maker bot did do. But in any case, it looks really cool. And we wish the folks at Lawrence Livermore in Berkeley, labs, all the luck. They could possibly have with this. And hopefully, you're from now we'll say. Hey, look, we got. Yeah. It's it's a very interesting notion. I mean, it is it my first thought it was like how they're doing SLA. You know, right. A little bit. But it's it's sort of polar SLA, you know, they're they're rotating it, which is I mean, it's it's an interesting concept. You're you're going to see some limitations. I mean, you'd think while I mean, how would this work on anything, but very transparent resins right because you're actually shooting into the resin to to affect the cure. Also, they're they're projecting the entire image to the surface. Right. Which can be a problem. Now. That's a problem that can be overcome fairly easily simply using the technique that we've reported on previous show where you do volume metrically from the middle out. You could probably get better quality that way. And maybe that's something. They'll be exploring in the near future. Right. Yeah. It's I'm I'm not. I'm not really sure. I mean, I guess I I can see their their their pictures. And it seems like this would be easy enough to do you know in? I I could build something to to actually do this in about an hour. If you read there, it's just a matter of what's the secret sauce on the resin. If you read further they describe how the the oxygenation of the resins make it possible. So that you can do the the image Perot tation right without without it, curing in places that you don't want it to cure something about how the oxygenation gives you that stat split away from cured versus uncured. I'm not sure I understand how it works. But they do say that after you've printed something you have to take the resin that's leftover and re-oxygenation. It just reuse it. Yeah. I was noticing that there. There seemed to be a lot of bubbles in the in the fluid that they're that they're showing which I that struck me as kind of weird, but I guess maybe. It's a side affect of the of the oxygenation by think, I'm in bubbles SLA is generally bad, generally interesting. Anyway, what do we have coming up on our show today Whitney? Well, let's see we started talking about color testing color changes. And then we describes e high compensation, and we have a review of Ryan Carlisle's new book on three D printer engineering volume. One awesome. Let's do this. So

Berkeley Lawrence Livermore Mr. Whitney Potter Andy Cohen NAS Stratus Ryan Carlisle L L Perot ninety minutes five minutes three years