Zonse zomwe muyenera kudziwa zokhudza zakale, zamakono komanso zamtsogolo za stereolithography

Vat photopolymerization, makamaka laser stereolithography kapena SL/SLA, inali ukadaulo woyamba wosindikiza wa 3D pamsika. Chuck Hull adachipanga mu 1984, adachipatsa chilolezo mu 1986, ndipo adayambitsa 3D Systems. Njirayi imagwiritsa ntchito mtengo wa laser kuti ipangitse zinthu za photoactive monomer mu vat. Zigawo za photopolymerized (ochiritsidwa) zimatsatira mbale yomanga yomwe imasunthira mmwamba kapena pansi malinga ndi hardware, zomwe zimapangitsa kuti zigawo zotsatizana zipangidwe. Makina a SLA amathanso kupanga magawo ang'onoang'ono komanso olondola pogwiritsa ntchito chingwe chaching'ono cha laser, munjira yomwe imadziwika kuti SLA yaying'ono kapena µSLA. Atha kupanganso magawo akulu kwambiri pogwiritsa ntchito makulidwe okulirapo komanso nthawi yayitali yopangira, mkati mwazomangamanga zopitilira ma kiyubiki metres awiri.

Chosindikizira cha SLA-1 Stereolithography (SLA), chosindikizira choyamba cha 3D chamalonda, chinayambitsidwa ndi 3D Systems mu 1987.

Pali mitundu ingapo yaukadaulo ya vat photopolymerization yomwe ilipo masiku ano. Yoyamba kutuluka pambuyo pa SLA inali DLP (Digital Light Processing), yopangidwa ndi Texas Instruments ndipo inabweretsedwa ku msika mu 1987. M'malo mogwiritsa ntchito mtengo wa laser wa photopolymerization, teknoloji ya DLP imagwiritsa ntchito pulojekiti yowunikira digito (yofanana ndi pulojekiti ya TV). Izi zimapangitsa kuti zikhale zofulumira kuposa SLA, chifukwa zimatha photopolymerize gawo lonse la chinthucho nthawi imodzi (yotchedwa "planar"). Komabe, ubwino wa zigawozo zimadalira momwe projekiti ikugwiritsidwira ntchito ndipo imawonongeka pamene kukula kwake kukuwonjezeka.

Monga extrusion yakuthupi, stereolithography idapezeka mosavuta ndi kupezeka kwa machitidwe otsika mtengo. Machitidwe oyambirira otsika mtengo adachokera ku njira zoyambirira za SLA ndi DLP. Komabe, m'zaka zaposachedwa, mbadwo watsopano wamagetsi otsika kwambiri, opangidwa ndi magetsi a LED / LCD atulukira. Kusintha kotsatira kwa vat photopolymerization kumadziwika kuti "continuous" kapena "layerless" photopolymerization, yomwe nthawi zambiri imachokera ku DLP zomangamanga. Njirazi zimagwiritsa ntchito nembanemba, makamaka okosijeni, kuti azitha kupanga mwachangu komanso mosalekeza. Patent ya mtundu uwu wa stereolithography idalembetsedwa koyamba mu 2006 ndi EnvisionTEC, kampani ya DLP yomwe idasinthidwanso kukhala ETEC, kutsatira kupezedwa ndi Desktop Metal. Komabe, Carbon, kampani yochokera ku Silicon Valley, inali yoyamba kugulitsa ukadaulo uwu mu 2016 ndipo idadzipanga kukhala mtsogoleri pamsika. Ukadaulo wa Carbon, womwe umadziwika kuti DLS (Digital Light Synthesis), umapereka zokolola zapamwamba kwambiri komanso kuthekera kopanga magawo okhala ndi zida zosakanizidwa zolimba, kuphatikiza ma thermosets ndi ma photopolymers. Makampani ena, monga 3D Systems (Chithunzi 4), Origin (tsopano ndi gawo la Stratasys), LuxCreo, Carima, ndi ena, adayambitsanso matekinoloje ofanana pamsika.