Making telescopes that curve and twist
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Making telescopes that curve and twist
3 minutes ago
himatsharma 35 in trending
A new tool for computational design allows users to turn any 3D shape into a collapsible telescoping structure. New mathematical methods developed by researchers at Carnegie Mellon University capture the complex and diverse properties of such structures, which are valuable for a variety of applications in 3D fabrication and robotics -- particularly where mechanisms must be compact in size and easily deployable.
The research, "Computational Design of Telescoping Structures," led by Carnegie Mellon Professors Stelian Coros and Keenan Crane and PhD student Christopher Yu, will be presented at the annual SIGGRAPH conference, 30 July to 3 August in Los Angeles. The conference each year spotlights the most innovative in computer graphics research and interactive techniques worldwide.
Traditional telescopes are perfectly straight, and their ability to expand from a compact form into a much bigger structure has been widely exploited in engineering design. So far, however, there hasn't been a systematic study of the types of shapes that can be modeled by telescoping structures, nor practical tools for telescopic design. At a recent maker faire, the researchers came across a set of retractable toy claws, fashioned after the popular X-Men character, Wolverine. Inspired by the claws' curved shape, they began to explore the idea of automating the design of telescoping structures, exploring a wide variety of shapes that could come out of a basic telescope model.
Far beyond the example of a typical straight telescope used for star gazing, other collapsible, deployable structures can benefit from a curved or twisted telescoping design: camping equipment such as tents or large outdoor structures used for music festivals; a heart stent that is tiny at the point of insertion but expands once it is surgically placed; or a robotic arm that can retract itself into a cylinder shape the size of a Coke can, enabling user portability and versatility.
Among deployable mechanisms, telescopes are very interesting. Once you expand them, they are very flexible and you can make a lot of different shapes, all with the same telescope," notes Crane, coauthor and Assistant Professor of Computer Science and Robotics at Carnegie Mellon. "We wanted to know what are all the possible shapes you can make from a telescoping structure."
Making telescopes that curve and twist
5 minutes ago by himatsharma 35 in trending
A new tool for computational design allows users to turn any 3D shape into a collapsible telescoping structure. New…
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5 minutes ago by asmartian 33 in game
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5 minutes ago by foxspot 31 in school
DEAR SCHOOLS, please change "I HATE SCHOOL" says every teenager that wasnt of the .003% that was in the belief…
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5 minutes ago by morry 46 in life
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6 minutes ago by edolo 43 in world
Even today, bees are still dying in masses. Which at first seems not very important until you realize that one third…
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6 minutes ago by temmityeu 25 in true
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6 minutes ago by adjs20 55 in funny
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6 minutes ago by oneshot 54 in musica
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6 minutes ago by zainalabidin 41 in food
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the Blue Post@christianity@chinese version.
6 minutes ago by mrblu 47 in cn
我们开始祷告 哦，主耶稣基督是最珍贵的 哦，主耶稣基督，我们相信你们在这个世界上的话语和作品 哦，主耶稣基督你的荣耀与力量将永远下雨 主啊，我们今天感谢你，我们有生存的机会，向我们的家人，朋友和亲人表达爱意。…
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꽃 이야기 - Flower Story
6 minutes ago by bais 38 in poetry
아침에 너는 신선 해 보인다. 명확한 아침 이슬의 유산의 녹색 잎 태양을 만져보고 싶은 것처럼 꽃잎은 닫힙니다. 줄기가 창공을 덮 치다 정오에 너는 강해 보인다. 불명료 한 색깔의 튼튼한 서있는 검객…
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6 minutes ago by jamesallen 53 in meditation
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A blue whale with a 75 foot boat for scale
6 minutes ago by padmakshi 47 in photography
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감의 장점,시 들떠 단속 유력한 질병
7 minutes ago by good-joinned 42 in kr
이 하나의 열매는 유일했다. 아니 그 모양 그러나 그 아름다운의 때문이다. 예 과일 등이 과일은 건방지게 파우더를 뿌리고 전체 스킨으로 불리는. 꼬리 치는 및 항상 장식하지만, 불행하게도, 사람들은 거의 좋아하는…
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7 minutes ago by spinner 59 in life
 has revealed that Rothschild Investment…
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Traditional dance "Ranup Lampuan"
7 minutes ago by nadiathkmh 25 in ranuplampuan
This dance is a traditional dance originating from Aceh, Indonesia And this dance is a welcome dance that is usually…
$0.00
0 0
Back
Making telescopes that curve and twist
5 minutes ago
himatsharma 35 in trending
A new tool for computational design allows users to turn any 3D shape into a collapsible telescoping structure. New mathematical methods developed by researchers at Carnegie Mellon University capture the complex and diverse properties of such structures, which are valuable for a variety of applications in 3D fabrication and robotics -- particularly where mechanisms must be compact in size and easily deployable.
The research, "Computational Design of Telescoping Structures," led by Carnegie Mellon Professors Stelian Coros and Keenan Crane and PhD student Christopher Yu, will be presented at the annual SIGGRAPH conference, 30 July to 3 August in Los Angeles. The conference each year spotlights the most innovative in computer graphics research and interactive techniques worldwide.
Traditional telescopes are perfectly straight, and their ability to expand from a compact form into a much bigger structure has been widely exploited in engineering design. So far, however, there hasn't been a systematic study of the types of shapes that can be modeled by telescoping structures, nor practical tools for telescopic design. At a recent maker faire, the researchers came across a set of retractable toy claws, fashioned after the popular X-Men character, Wolverine. Inspired by the claws' curved shape, they began to explore the idea of automating the design of telescoping structures, exploring a wide variety of shapes that could come out of a basic telescope model.
Far beyond the example of a typical straight telescope used for star gazing, other collapsible, deployable structures can benefit from a curved or twisted telescoping design: camping equipment such as tents or large outdoor structures used for music festivals; a heart stent that is tiny at the point of insertion but expands once it is surgically placed; or a robotic arm that can retract itself into a cylinder shape the size of a Coke can, enabling user portability and versatility.
Among deployable mechanisms, telescopes are very interesting. Once you expand them, they are very flexible and you can make a lot of different shapes, all with the same telescope," notes Crane, coauthor and Assistant Professor of Computer Science and Robotics at Carnegie Mellon. "We wanted to know what are all the possible shapes you can make from a telescoping structure."
The team's mathematical model of telescoping structures starts with three common-sense requirements: each shell must be manufacturable from rigid material (like metal), the telescope must be able to extend and contract without bumping into itself, and there should be no empty wasted space between nested pieces. These basic requirements led to a key geometric insight: the complicated mechanical description of a telescope can be replaced by simple geometric curves that exhibit a constant amount of bend but arbitrary "twist," significantly generalizing the straight telescopes found in typical engineering designs. The team successfully prototyped applications in 3D fabrication and robotics, using their novel system to design both a flexible, controllable robot arm, and a tent-like structure that grows to several times its original volume.