Zvese zvaunoda kuziva nezvekare, zvazvino uye remangwana re stereolithography

Kugadziriswa kweVat, kunyanya laser stereolithography kana SL/SLA, ndiyo yaive tekinoroji yekutanga yekudhinda ye3D pamusika. Chuck Hull akaigadzira muna 1984, akaiita patent muna 1986, uye akatanga 3D Systems. Maitiro aya anoshandisa laser beam kupomesa chinhu chinoshanda chemonomer muvhati. Ma layers ane photopolymer (akacheneswa) anonamatira papuratifomu yekuvaka inokwira kana kudzika zvichienderana nehardware, zvichibvumira ma layers akatevedzana kuumbwa. Masisitimu eSLA anogonawo kugadzira zvikamu zvidiki uye zvakananga achishandisa dhayamita diki yelaser beam, muitiro unozivikanwa se micro SLA kana µSLA. Anogonawo kugadzira zvikamu zvakakura kwazvo achishandisa dhayamita yakakura yebhati uye nguva refu yekugadzira, mukati mehuwandu hwekuvaka hunorema kupfuura ma cubic metres maviri.

Printer yeSLA-1 Stereolithography (SLA), printer yekutanga ye3D yekutengeserana, yakaunzwa ne3D Systems muna 1987.

Kune misiyano yakati wandei yetekinoroji ye photopolymerization ye VAT iripo nhasi. Yekutanga kubuda mushure meSLA yaive DLP (Digital Light Processing), yakagadzirwa neTexas Instruments uye yakaunzwa kumusika muna 1987. Panzvimbo pekushandisa laser beam ye photopolymerization, tekinoroji yeDLP inoshandisa digital light projector (yakafanana neTV projector yakajairika). Izvi zvinoita kuti ikurumidze kupfuura SLA, sezvo ichigona photopolymerization chikamu chose chechinhu panguva imwe chete (inonzi "planar"). Zvisinei, mhando yezvikamu zvinoenderana ne resolution yeprojekita uye inoderera sezvo saizi ichiwedzera.

Kufanana nekuburitswa kwezvinhu, stereolithography yakava nyore kuwana nekuwanikwa kwemasisitimu anodhura zvishoma. Masisitimu ekutanga anodhura zvishoma akavakirwa pamaitiro ekutanga eSLA neDLP. Zvisinei, mumakore achangopfuura, chizvarwa chitsva chemasisitimu anodhura zvishoma, akavakirwa pamagetsi e LED/LCD chakabuda. Kushanduka kunotevera kwe photopolymerization ye VAT kunozivikanwa se "continuous" kana "layerless" photopolymerization, iyo inowanzo shandiswa pakugadzira DLP. Maitiro aya anoshandisa membrane, kazhinji oxygen, kuti iite kuti kugadzirwa kuwedzere nekukurumidza uye kuenderera mberi. Patent yerudzi urwu rwe stereolithography yakatanga kunyoreswa muna 2006 neEnvisionTEC, kambani yeDLP iyo yakazotumidzwa zita idzva rekuti ETEC, mushure mekutengwa kwayo neDesktop Metal. Zvisinei, Carbon, kambani iri kuSilicon Valley, ndiyo yaive yekutanga kushambadzira tekinoroji iyi muna 2016 uye kubvira ipapo yakazvigadzira semutungamiri mumusika. Tekinoroji yeCarbon, inozivikanwa seDLS (Digital Light Synthesis), inopa huwandu hwekugadzira hwakakwira zvakanyanya uye kugona kugadzira zvikamu nezvinhu zvinogara kwenguva refu, zvichibatanidza ma thermosets nema photopolymers. Mamwe makambani, akadai se3D Systems (Mufananidzo 4), Origin (yava chikamu cheStratasys), LuxCreo, Carima, nedzimwe, akaunzawo matekinoroji akafanana pamusika.