Byose ukeneye kumenya ku byahise, iby'ubu n'ejo hazaza bya stereolithography

Gukoresha ikoranabuhanga rya Vat, cyane cyane ikoranabuhanga rya laser stereolithography cyangwa SL/SLA, ni ryo koranabuhanga rya mbere rya 3D ryakozwe ku isoko. Chuck Hull yaryivumbuye mu 1984, ariha uburenganzira bwo gukoresha mu 1986, anashinga 3D Systems. Ubu buryo bukoresha icyuma cya laser kugira ngo gikore polymere y'ibikoresho bya monomer bifotora mu gikoresho. Ibyuma bya fotopolymerize (byavuwe) bifatanye n'icyuma gikozwe kizamuka cyangwa kimanuka bitewe n'ibikoresho, bigatuma ibyuma bikurikirana bikorwa. Sisitemu za SLA zishobora kandi gukora ibice bito cyane kandi by'ukuri hakoreshejwe umurambararo muto wa laser, mu buryo buzwi nka micro SLA cyangwa µSLA. Zishobora kandi gukora ibice binini cyane zikoresheje umurambararo munini w'icyuma n'igihe kirekire cyo gukora, mu bunini bw'icyuma bupima metero kibe ebyiri.

Imashini icapisha SLA-1 Stereolithography (SLA), imashini icapisha ya mbere ya 3D, yatangijwe na 3D Systems mu 1987.

Hari ubwoko butandukanye bw'ikoranabuhanga rya photopolymerization rya VAT riboneka muri iki gihe. Ubwa mbere bwagaragaye nyuma ya SLA ni DLP (Digital Light Processing), yakozwe na Texas Instruments ikazanwa ku isoko mu 1987. Aho gukoresha urumuri rwa laser muri photopolymerization, ikoranabuhanga rya DLP rikoresha projector y'urumuri rwa digitale (isa na projector ya televiziyo isanzwe). Ibi bituma yihuta kurusha SLA, kuko ishobora gufotora urwego rwose rw'ikintu icyarimwe (byitwa "planar"). Ariko, ubwiza bw'ibice biterwa n'ubushobozi bwa projector kandi bugabanuka uko ingano yiyongera.

Kimwe no gusohora ibikoresho, stereolithography yarushijeho kuboneka bitewe no kuboneka kwa sisitemu zihendutse. Sisitemu za mbere zihendutse zari zishingiye ku buryo bwa mbere bwa SLA na DLP. Ariko, mu myaka ya vuba aha, havutse ubwoko bushya bwa sisitemu ntoya kandi zihendutse cyane zishingiye ku matara ya LED/LCD. Iterambere rikurikira rya photopolymerization rya VAT rizwi nka "continuous" cyangwa "layerless", ubusanzwe rishingiye ku miterere ya DLP. Izi nzira zikoresha membrane, akenshi ogisijeni, kugira ngo zikore vuba kandi mu buryo buhoraho. Patenti y'ubu bwoko bwa stereolithography yemewe bwa mbere mu 2006 na EnvisionTEC, sosiyete ya DLP yahinduwe izina rya ETEC, nyuma yo kugurwa na Desktop Metal. Ariko, Carbon, sosiyete ikorera muri Silicon Valley, ni yo ya mbere yashyize ku isoko iri koranabuhanga mu 2016 kandi kuva icyo gihe yagaragaye nk'iya mbere ku isoko. Ikoranabuhanga rya Carbon, rizwi nka DLS (Digital Light Synthesis), ritanga umusaruro mwinshi cyane n'ubushobozi bwo gukora ibice bifite ibikoresho biramba, bihuza thermosets na photopolymers. Andi masosiyete, nka 3D Systems (Ishusho ya 4), Origin (ubu ni imwe muri Stratasys), LuxCreo, Carima, n'andi, na yo yashyize ku isoko ikoranabuhanga nk'iryo.