{"id":2527,"date":"2019-01-18T00:23:28","date_gmt":"2019-01-17T15:23:28","guid":{"rendered":"http:\/\/163.180.4.222\/lab\/?p=2527"},"modified":"2019-01-18T00:23:28","modified_gmt":"2019-01-17T15:23:28","slug":"3d-printing-gets-a-lift-from-light","status":"publish","type":"post","link":"https:\/\/biochemistry.khu.ac.kr\/lab\/?p=2527","title":{"rendered":"3D printing gets a lift from light"},"content":{"rendered":"

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\"3D<\/p>\n

This resin model of the University of Michigan emblem was printed in just one minute. Credit: Evan Dougherty<\/p>\n

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A sophisticated technique can make complex objects in a single shot by blasting resin with two wavelengths of light.<\/h5>\n

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A fresh approach to stereolithographic printing has increased both the speed and reliability of this means of fabricating three-dimensional objects.<\/p>\n

Stereolithographic printing builds each layer of a 3D object by projecting light through a window at the bottom of a vat of liquid resin. The light causes the resin to cure and solidify.<\/p>\n

Mark Burns, Timothy Scott and their colleagues at the University of Michigan in Ann Arbor developed a method that uses two light sources \u2014 one to solidify the resin, and a separate ultraviolet light to prevent resin from curing on the window\u2019s surface. The presence of a zone where no unwanted solidification occurred allowed for efficient use of resins and boosted the speed of printing: objects such as embossed text a fraction of a millimetre across could be created in a single exposure, rather than layer-by-layer, as with conventional methods.<\/p>\n

The combined use of two colours of light in 3D printing could be further expanded to create complex objects that integrate materials with different chemical and physical properties, the authors propose.<\/p>\n

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Sci. Adv.<\/i>\u00a0(2019)<\/a><\/p>\n<\/div>\n

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(\uc6d0\ubb38: \uc5ec\uae30<\/a>\ub97c \ud074\ub9ad\ud558\uc138\uc694~)<\/p>\n

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    This resin model of the University of Michigan emblem was printed in just one minute. Credit: Evan Dougherty     A sophisticated technique(more…)<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[34,36,29,30],"tags":[],"class_list":["post-2527","post","type-post","status-publish","format-standard","hentry","category-lets-do-chemistry","category-lets-do-physics","category-lets-do-science","category-recent-science-news"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":2613,"url":"https:\/\/biochemistry.khu.ac.kr\/lab\/?p=2613","url_meta":{"origin":2527,"position":0},"title":"Forget everything you know about 3D printing \u2014 the \u2018replicator\u2019 is here","author":"biochemistry","date":"February 1, 2019","format":false,"excerpt":"\u00a0 \u00a0 Rather than building objects layer by layer, the printer creates whole structures by projecting light into a resin that solidifies. \u00a0 \u00a0 \u00a0 They nicknamed it \u2018the replicator\u2019 \u2014 in homage to the machines in the\u00a0Star Trek\u00a0saga that can materialize virtually any inanimate object. 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