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Carbon3D – 3D Printing via Continuous Liquid Interface Production

carbon3d.com

11–20 of 112 posts

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

#12
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…

They've raised 40m from Sequoia, so it's reasonable to conclude there's been some degree of vetting. Given that they show video of a working prototype it's very likely this vetting included independent observation of their printer in action. Their product might be useless for some other reason, but if so it's non-obvious enough for them to have raised a non-trivial amount of money.

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

#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.

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

#14
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...

In one of the images on their site they're claiming it's different from SLA and much faster.

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

#17
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...

They're doing the "growing" on a membrane at the bottom of the tank, instead of layer by layer at the top of the tank.

That should let them print really quickly and precisely, even compared to the SLA printers you link.

The reason it hasn't been possible in the past is that the polymerization process requires oxygen, which has only previously been available from the air over the liquid resin. Their system has some "secret sauce" for getting it to the bottom of the vat.

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

#19
Smooth curved surfaces have been a limiting factor for 3d printing in regards to optics. It sounds like this could be used for either directly printing some lenses or printing molds that could be used to create lenses depending on their level of precision. This would be awesome.

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

#20
post #12
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…

They've raised 40m from Sequoia, so it's reasonable to conclude there's been some degree of vetting. Given that they show video of a working prototype it's very likely this vetting included independent observation of their printer in action. Their product might be useless for some other reason, but if so it's non-obvious enough for them to have raised a non-trivial amount of money.

Clinkle did raise 25 million as well, nevertheless this looks cool and hope it is affordable.
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