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Carbon3D – 3D Printing via Continuous Liquid Interface Production

carbon3d.com

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Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#51

Post by no_gravity »

booli wrote: post #50

Continuous is kind of a misleading marketing term isn't it? If it projected, it is in frames. Just like that the upward movement is in frames / steps. In essence the resolution is still as high as the resolution of the step motors moving the build plate up and it's layer by layer. Not arguing that it is not a cool technique, just saying that they marketing it again with bogus wording. I've seen many FDM printers do c…

Projectors and motors are analog devices. Even step motors do not move from one position to the other instantly.

In theory you could tell the build plate to go up 100 microns and tell the projector to change the image while taking into account what happens between the two stages. While the motor moves and the lights change color. So you can create different kinds of continuous transitions between the stages.

This applies to every discussion about digital/analog of course.

Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#52

Post by keyle »

Animats wrote: post #10

The site is so cool that it just screams "fake". Cool pictures, not much copy, no details. The big difference here is that they're doing photopolymerization at the bottom of the tank, rather than at the top like everybody else. This requires a transparent material that passes oxygen on the bottom of the tank, so the action takes place on the surface of that membrane. They're vague about the details. How long does the…

There is an address and real people on the site. I wouldn't call fake.

Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#53

Post by Kliment »

crocowhile wrote: post #48

I am just a bit sad that this is going to be a commercial venture protected by Intellectual Property. IP is the reason why filament extrusion is so widespread and cheap for DIYers compared to SLA.

I agree, and it is sad. Well, in 20 years when the patent expires we can finally get some progress on this tech, just like when the patents on filament extrusion expired the costs went down two orders of magnitude and print speed and quality up one order of magnitude in the space of a couple years. Until then it's going to stagnate.

Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#54

Post by booli »

no_gravity wrote: post #51
booli wrote: post #50

Continuous is kind of a misleading marketing term isn't it? If it projected, it is in frames. Just like that the upward movement is in frames / steps. In essence the resolution is still as high as the resolution of the step motors moving the build plate up and it's layer by layer. Not arguing that it is not a cool technique, just saying that they marketing it again with bogus wording. I've seen many FDM printers do c…

Projectors and motors are analog devices. Even step motors do not move from one position to the other instantly. In theory you could tell the build plate to go up 100 microns and tell the projector to change the image while taking into account what happens between the two stages. While the motor moves and the lights change color. So you can create different kinds of continuous transitions between the stages. This app…

The image the projector makes is in theory also in frames of course.

But yeah, discussion, is a movie continuous or is it frames p/s?

Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#55

Post by Sven7 »

vortico wrote: post #29
sdrothrock wrote: post #21

Earlier quoted context omitted.

> The site is so cool that it just screams "fake". They do have a video of the actual product at the bottom, which is just plain cool.

I don't know much about 3D printing, but that's the most futuristic video I've seen this decade. It looks like it could just pull a coffee mug or whatever out of nothing and serve it.

Coffee mug :) I was thinking X-Files alien fetus.

Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#57

Post by adventured »

lostsock wrote: post #13

This looks amazing though I'm not really sure it is the speed that has been the thing holding back 3D printers, although that is certainly an aspect of it. I still think the biggest thing stopping adoption is most people not having any idea what to print on a 3D printer, even if buying, operating, calibrating and maintaining one was cheap and easy.

Speed is a very big market impediment for 3D printing.

You can't mass deploy printing kiosks at consumer stores if it takes four hours to make a mug or a trinket (you can, but it's absurd). If it takes five minutes you can and people will buy all sorts of custom products that way.

Someone on Reddit mentioned it taking 20 hours to print half a skull. That's ridiculous. This will do it in probably 20 or 30 minutes, and it'll likely get faster with improvements in the next couple of years.

Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#58

Post by Geee »

iamwil wrote: post #23
drabiega wrote: post #6

Unless I'm missing something, this is not exactly a new technology. http://makezine.com/2014/07/26/droplit-the-low-cost-diy-resi... http://www.instructables.com/id/DIY-high-resolution-3D-DLP-p... http://www.3ders.org/articles/20120911-a-list-of-diy-high-re...

You are. Using UV to cure photo-sensitive resin isn't the innovation, it's using the oxygen permeable membrane. If you look at the Form 1 printer or the B9Creator, there's a mechanical step between every layer where it needs to actuate the platform in order to loosen the resin from the projection window, so it can build the next layer. In the Form 1, it peels the print off, and the B9Creator slides a window. (look fo…

Is this process really better than the one used in the Peachy printer? Peachy printer uses resin tank that is filled with salt water from the bottom (which raises the level continuously, resin floats on saltwater) and the UV curing is done from the top. One huge thing for the Peachy is that you can use any tank, and the size of the print isn't limited. Also, Peachy costs just $100.

Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#59

Post by bsdpython »

lostsock wrote: post #13

This looks amazing though I'm not really sure it is the speed that has been the thing holding back 3D printers, although that is certainly an aspect of it. I still think the biggest thing stopping adoption is most people not having any idea what to print on a 3D printer, even if buying, operating, calibrating and maintaining one was cheap and easy.

The speed difference will make a lot of business ideas viable. Think custom fitting wearables 3D printed in minutes.

Re: Carbon3D – 3D Printing via Continuous Liquid Interface Production

#60

Post by kerridge0 »

Geee wrote: post #58
iamwil wrote: post #23

Earlier quoted context omitted.

You are. Using UV to cure photo-sensitive resin isn't the innovation, it's using the oxygen permeable membrane. If you look at the Form 1 printer or the B9Creator, there's a mechanical step between every layer where it needs to actuate the platform in order to loosen the resin from the projection window, so it can build the next layer. In the Form 1, it peels the print off, and the B9Creator slides a window. (look fo…

Is this process really better than the one used in the Peachy printer? Peachy printer uses resin tank that is filled with salt water from the bottom (which raises the level continuously, resin floats on saltwater) and the UV curing is done from the top. One huge thing for the Peachy is that you can use any tank, and the size of the print isn't limited. Also, Peachy costs just $100.

Well here you only need a small tank relative to the finished print, also, you don't move the laser head, but only the parts of the item that has already been printed. Everything else stays still, meaning reduced vibration which seems to mean a really steady quality of print.
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