101–110 of 112 posts
I was just about to purchase my first 3d printer (Lulzbot Taz 5), but this gives me pause. As runner up to the coolest 3d printing technology I've seen recently, check out the Mcor Iris: http://mcortechnologies.com/3d-printers/iris/ https://www.youtube.com/watch?v=hh3McRQi6II
When this thing's on the market you'll be all "Oh, but the second generation one prints 4x faster and can do color! I'll wait for that."
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Don't worry. IP protection is only for commercial ventures. Once the details are well understood by hobbyists, you will be able to build one yourself with no worries of infringement. That said, I'll hold my breath until somebody replicates the optically transparent - oxygen permeable membrane (I guess it is some kind of "holed" plastic or glass, with a goretex-like coating on one side).
Correction - the oxygen permeable surface is Teflon AF 2400 which is available commerically: http://www.randomtechnologies.com/ The spacer (initial seperation between window and glass build plate) which determines resin thickness is 8 mil (200 um) aluminium shim stock. The projector looks like a UV projector: http://www.ti.com/devnet/docs/catalog/thirdpartydevtoolfolde... That should be enough to get anybody started!…
Earlier quoted context omitted.
Don't worry. IP protection is only for commercial ventures. Once the details are well understood by hobbyists, you will be able to build one yourself with no worries of infringement. That said, I'll hold my breath until somebody replicates the optically transparent - oxygen permeable membrane (I guess it is some kind of "holed" plastic or glass, with a goretex-like coating on one side).
Correction - the oxygen permeable surface is Teflon AF 2400 which is available commerically: http://www.randomtechnologies.com/ The spacer (initial seperation between window and glass build plate) which determines resin thickness is 8 mil (200 um) aluminium shim stock. The projector looks like a UV projector: http://www.ti.com/devnet/docs/catalog/thirdpartydevtoolfolde... That should be enough to get anybody started!…
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.
1: http://policy.sites.unc.edu/files/2013/05/Patent-Invention.p...
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Correction - the oxygen permeable surface is Teflon AF 2400 which is available commerically: http://www.randomtechnologies.com/ The spacer (initial seperation between window and glass build plate) which determines resin thickness is 8 mil (200 um) aluminium shim stock. The projector looks like a UV projector: http://www.ti.com/devnet/docs/catalog/thirdpartydevtoolfolde... That should be enough to get anybody started!…
You forgot the resin, which is probably isn't just a regular UV-activated resin but could be their own patented mixture to achieve the accurate curing time they need. That's the harder part to DIY but I guess it's not impossible and there will be similar products soon.
The ramp test patterns in Fig. 1C were printed with trimethylolpropane triacrylate (TMPTA) using the photoinitiator, diphenyl(2,4,6-trimethyl-benzoyl)phosphine oxide. Other objects were printed with a combination of monomers from Sartomer (CN2920 & CN981), TMPTA, and reactive diluents such as n-vinylpyrrolidone, isobornyl acrylate, and cyclohexane dimethanol di-vinyl ether. We also utilized the photoinitiators, phenylbis(2,4,6-trimethyl-benzoyl)phosphine oxide, 1-hydroxycyclohexyl phenyl ketone, and 2-benzyl-2-(dimethylamino)4morpholinobutyrophenone along with an assortment of dyes from Wikoff and Mayzo.
http://www.sciencemag.org/content/suppl/2015/03/16/science.a...
What is the precision and how small can an object be? How small can the printer be? Can we make nanoprinters that are controlled from the cloud to mutate the models they create as necessary? Nanovaccines that can change in response to mutating threats... I feel like I have understood the importance of 3D printing for the very first time which makes sense, I have tended to be a little slow.
As to the precision of Carbon3D, the best I can figure based on their recent publication is printed layers as small as 1µm. That's pretty darn good resolution for a 3D printer.
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The speed and smooth ascension are actually game changers imo.
Agreed. I have a more or less exact idea of what they're doing just from the concept description as I design resin-type 3D printers at my day job. I know this concept has been tried, I think they're just the first ones to have gotten it to work. The other thing to note is that this only works with a certain subset of polymerization reactions--not all polymerizations are oxygen inhibited so if they want to move into t…
I wonder how it would perform with a controllable dipping system and a DLP.
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That's fascinating but a bit out of my depth. Do you have any references that a newbie to 3d printing should look at before taking the plunge?
First carefully consider what you want to print. For example, this resin type printer is not a great technology for creating strong replacement parts around the house.
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If it weren't for patents, they likely wouldn't have spent $40million developing it. Someone would reverse engineer it and then launch a Kickstarter and sell it without having to spend the R&D cost.
They did not spend $40M to develop it. The development came from tax-payer money given to their lab at UNC through classical funding streams. Sequoia put in $40M to make a business out of it, which is a very different goal.
See the paper in Science released online just now: http://www.sciencemag.org/content/early/2015/03/16/science.a... It will apparently be the cover story. (Does this count as Sequoia breaking Science's embargo?): https://twitter.com/sequoia/status/577651625545748480 From the abstract: "...feature resolution below 100 micrometers. ... complex solid parts can be drawn out of the resin at rates of hundreds of millimeters…