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Automatic Machine Knitting of 3D Meshes
- raj_m 9y agoLooks really interesting. I presume this is accepted to SIG18 ???
- yig 9y agoDecisions for SIGGRAPH 2018 haven't been made yet. This may have been submitted directly to the journal Transactions on Graphics.
- Isamu 9y agoDidn't know CMU had a Textile Lab! Looks to be under the Robotics Institute, or affiliated. Very interesting, thanks!
- ohiovr 9y agoVery interesting. Could make a fun hobby out of it. Maybe use it to construct woven carbon fiber objects?
- blacksmith_tb 9y agoCF isn't so different from a lot of natural fibers, I would think if you loaded up the knitting machine with bamboo yarn, you could glop resin onto the finished product to achieve something similar to carbon.
- Varcht 9y agoSeems like an interesting idea, you can get it to lay up some pretty complex shapes using the common weaves but it is an art/pia. Seems there has been some research into it https://www.advancedsciencenews.com/how-to-knit-carbon-fibers/ https://www.advancedsciencenews.com/how-to-knit-carbon-fiber...
- brandmeyer 9y agoThe mold is the tricky bit. You need to make your knitting in sections that will fit over the mold. It might be more effective than using strips, or it might just be more expensive.
- johnhattan 9y agoRather odd that they're only showing the video as a downloadable MP4 file. I didn't see a copyright notice, so I put it up on YouTube. https://youtu.be/R3Ax7U5dvbc https://youtu.be/R3Ax7U5dvbc Note that the video is silent.
- contravariant 9y agoThere's no such thing as a copyright notice. There's no need for them, copyright exists automatically on any creative work. What you may have been looking for is a copyright license. These give permission to share the work, possibly subject to certain conditions. The absence of a license simply means you ARE NOT licensed to share the work in any way shape or form. Your intentions seem to be good but you may want to reconsider.
- candiodari 9y agoAs we all know, the internet is about the free and open sharing of other people's ideas !
- dag11 9y agoThat's a nice sentiment but that isn't how laws work.
- colordrops 9y agoLaws are a sentiment but that isn't how reality works.
- candiodari 9y agoIndeed. Western legal principle: everything is legal, until you get convicted. (Technically it's even more specific than that. You don't get to complain or get enforcement just because something is illegal. 3 conditions need to be satisfied. First, it needs to violate the law, as it the law applies to both the complainant and the defendant. Second there needs to be damage to the complainant. Thirdly there needs to be a causal connection between the damage and the law violation. And of course, there's still the implicit condition: there must be a complaint in the first place) I wish people would keep this in mind when talking about law.
- jjcm 9y agoI'd love to see if I can do a 3d scan of my torso and have a sweater knit that exactly fits my frame. It'd be very interesting to see clothing made in this fashion.
- mcphage 9y agoAlthough, once you gain or lose a few pounds, it wouldn’t fit quite so exactly anymore.
- jfoutz 9y agoI think knit cloth would do really well with small variations. If the target is form fitting, you want it to just touch everywhere. Knit is pretty tolerant of that.
- jayd16 9y agoI don't think this would be ideal for clothes, although I'm sure it would be pretty good. Clothes are designed to move. They have pleats and extra space. A perfectly form fitting sweater would have cause stress/stretching as you moved your arms.
- kaitai 9y agoSimilar methods are already in use in clothing design. Programs and patterns have the "extra space" built in; the jargon for it in knitwear is "ease" and it varies not only according to desired fit but also type of yarn/fiber. A garment with negative ease, for instance, needs to expand to fit onto your body, while a garment with positive ease is larger than the body measurements, and of course you could vary the ease within the garment. There is some interesting engineering that needs to happen near large joints -- as you say, a "perfectly form-fitting sweater" might have some difficulties at the armpits for instance as we have such a range of motion there. But these are well-studied problems!
- femto 9y agoWhat about applying this to making breast prostheses, whether they be automatically or manually knitted? It might allow a better fit and match to the existing shape if a pattern could be generated on a per-patient basis? https://www.knittedknockers.org/ https://www.knittedknockers.org/
- abraae 9y agoThings your Grandma said while knitting ... never: > The function is feasible for machine knitting if its Reeb graph has an upward planar embedding.
- carlob 9y agoSpeak for your own grandma! After mine died I discovered she had studied mathematics under Peano for a couple of years before getting married. Unfortunately the only source I have for this interaction with Peano is an inscription on a Dover book that a friend of hers had gifted her. Happy international women's day!
- Y_Y 9y agoNice! My grandma studied mathematics under Eamonn De Valera, the American who liberated Ireland.
- olliej 9y agoI love these machines they’re so much fun to watch (for me at least they’re still in “how on earth did someone work out how to make this?” Part of my brain) I recall someone publishing something similar a few years ago - I wonder how this compares?
- billconan 9y agohow much does a knitting machine cost?
- extrapickles 9y agoThey cost about as much as a typical industrial CNC machine tool, so close to $250k installed.
- dagw 9y agoYou can also get hobby machines as well, starting from a a couple of thousand dollars.
- paulhart 9y agoThis is true, but you'll tend to get used machines (even at that price). I own a Passap 6000 as well as a single-bed machine; they're fun toys to have, definitely on the unusual side of the nerdy scale. Various links to fun projects: * https://www.hackerspace-bamberg.de/Passap_pfaff_e6000 https://www.hackerspace-bamberg.de/Passap_pfaff_e6000 * https://www.hackerspace-bamberg.de/Knitty https://www.hackerspace-bamberg.de/Knitty * http://www.kniterate.com http://www.kniterate.com (this is very cool, but $8000)
- etaioinshrdlu 9y agoThis could be very useful for weaving carbon fiber composite parts. Orienting the fibers to make a strong part is quite an art.
- neelkadia 9y agoAmazing! Programmers are needed in each discipline. This is such a transdisciplinary project.
- Y_Y 9y agoDoes anyone know of service that lets you send in such a design and get the result posted back like exists for laser cutting or PCBs?
- xedarius 9y agoCool - I can have a Utah teapot cosy for my teapot.