Ihe niile ịchọrọ ịma gbasara stereolithography gara aga, ugbu a na ọdịnihu

Vat photopolymerization, kpọmkwem laser stereolithography ma ọ bụ SL/SLA, bụ teknụzụ obibi akwụkwọ mbụ 3D na ahịa. Chuck Hull chepụtara ya na 1984, chepụta ya na 1986, wee hiwe 3D Systems. Usoro a na-eji ọkụ laser mee ihe na-emepụta ihe monomer fotoactive na vat. N'ígwé nke photopolymerized (gwọrọ) na-arapara na efere ihe owuwu nke na-ebuli elu ma ọ bụ gbadaa dabere na ngwaike, na-ekwe ka ọkwa na-esote ga-etolite. Sistemụ SLA nwekwara ike imepụta akụkụ dị ntakịrị na nke ziri ezi site na iji obere dayameta laser, na usoro a maara dị ka micro SLA ma ọ bụ µSLA. Ha nwekwara ike iwepụta akụkụ buru ibu site na iji dayameta osisi buru ibu na ogologo oge mmepụta, n'ime mpịakọta a na-ewu ihe karịrị mita cubic abụọ.

Ihe nbipute SLA-1 Stereolithography (SLA), ngwa nbipute 3D mbụ azụmahịa, bụ 3D Systems webatara na 1987.

Enwere ọtụtụ ọdịiche nke teknụzụ vat photopolymerization dị taa. Nke mbụ pụtara mgbe SLA gasịrị bụ DLP (Digital Light Processing), nke Texas Instruments mepụtara wee weta ya n'ahịa na 1987. Kama iji laser beam maka photopolymerization, teknụzụ DLP na-eji ihe ngosi ọkụ dijitalụ (dị ka ọkọlọtọ TV projector). Nke a na-eme ka ọ dị ngwa karịa SLA, n'ihi na ọ nwere ike photopolymerize oyi akwa nke ihe ahụ n'otu oge (nke a na-akpọ usoro "planar"). Otú ọ dị, àgwà nke akụkụ ahụ na-adabere na mkpebi nke projector ma na-eweda ya ka nha na-abawanye.

Dị ka extrusion ihe onwunwe, stereolithography bịara nwetakwuo ohere site na ịnweta usoro dị ọnụ ala. Sistemu dị ọnụ ala nke mbụ dabere na usoro SLA na DLP mbụ. Otú ọ dị, n'ime afọ ndị na-adịbeghị anya, ọgbọ ọhụrụ nke ultra-dị ọnụ ala, kọmpat usoro dabeere na LED/LCD ìhè isi mmalite apụtawo. A na-akpọ evolushọn ọzọ nke vat photopolymerization dị ka "na-aga n'ihu" ma ọ bụ "na-enweghị akwa" photopolymerization, nke na-adabere na nhazi DLP. Usoro ndị a na-eji akpụkpọ anụ, nke na-abụkarị oxygen, iji mee ka ọnụego mmepụta ngwa ngwa na-aga n'ihu. Edebere patent maka ụdị stereolithography nke mbụ na 2006 site n'aka EnvisionTEC, ụlọ ọrụ DLP nke ewegharịrị aha ya dị ka ETEC, na-eso nweta ya site na Desktop Metal. Agbanyeghị, Carbon, ụlọ ọrụ dabere na Silicon Valley, bụ onye izizi ahịa teknụzụ a na 2016 wee guzobe onwe ya dị ka onye ndu n'ahịa ahụ. Teknụzụ Carbon, nke a maara dị ka DLS (Digital Light Synthesis), na-enye ọnụego nrụpụta dị elu nke ukwuu yana ikike imepụta akụkụ nwere ngwa ngwakọ na-adịgide adịgide, na-ejikọta thermosets na fotopolymers. Ụlọ ọrụ ndị ọzọ, dị ka 3D Systems (Figure 4), Origin (ugbu a akụkụ nke Stratasys), LuxCreo, Carima, na ndị ọzọ, ewebatala teknụzụ ndị yiri ya na ahịa.