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

VAT photopolymerization, ọkachasị laser stereolithography ma ọ bụ SL/SLA, bụ teknụzụ mbipụta 3D mbụ dị n'ahịa. Chuck Hull mepụtara ya na 1984, nweta ikike ikike na 1986, wee guzobe 3D Systems. Usoro a na-eji laser beam iji polymerize ihe monomer fotoactive na vat. Akwa photopolymerized (agwọra) na-arapara na efere owuwu nke na-aga elu ma ọ bụ ala dabere na ngwaike ahụ, na-enye ohere ka akwa ndị na-esochi etolite. Sistemụ SLA nwekwara ike imepụta obere akụkụ na nke ziri ezi site na iji obere dayameta laser beam, na usoro a maara dị ka micro SLA ma ọ bụ µSLA. Ha nwekwara ike ịmepụta nnukwu akụkụ site na iji dayameta beam buru ibu na oge mmepụta dị ogologo, n'ime olu nrụpụta nke karịrị cubic mita abụọ.

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

E nwere ọtụtụ ụdị teknụzụ fotopolymerization dị taa. Nke mbụ pụtara mgbe SLA gasịrị bụ DLP (Digital Light Processing), nke Texas Instruments mepụtara ma weta n'ahịa na 1987. Kama iji laser beam maka photopolymerization, teknụzụ DLP na-eji ihe ngosi ọkụ dijitalụ (yiri ihe ngosi TV ọkọlọtọ). Nke a na-eme ka ọ dị ngwa karịa SLA, ebe ọ nwere ike ime ka otu oyi akwa nke ihe ahụ dị ọcha n'otu oge (a na-akpọ ya usoro "planar"). Agbanyeghị, ịdị mma nke akụkụ ndị ahụ dabere na mkpebi nke ihe ngosi ahụ ma na-ebelata ka nha ya na-abawanye.

Dịka mmịpụta ihe, stereolithography bịara dị mfe ịnweta site na ịnweta sistemụ dị ọnụ ala. Sistemụ mbụ dị ọnụ ala dabere na usoro SLA na DLP mbụ. Agbanyeghị, n'afọ ndị na-adịbeghị anya, ọgbọ ọhụrụ nke sistemụ dị ọnụ ala, nke dabere na isi mmalite ọkụ LED/LCD apụtala. A maara mgbanwe ọzọ nke fotopolymerization vat dị ka "na-aga n'ihu" ma ọ bụ "enweghị akwa", nke na-adaberekarị na usoro DLP. Usoro ndị a na-eji membrane, nke na-abụkarị oxygen, iji mee ka ọnụego mmepụta ngwa ngwa na-aga n'ihu. EnvisionTEC, ụlọ ọrụ DLP nke agbanweela aha ya dị ka ETEC, debanyere aha patent maka ụdị stereolithography a na 2006, mgbe Desktop Metal zụtara ya. Agbanyeghị, Carbon, ụlọ ọrụ dị na Silicon Valley, bụ onye mbụ na-ere teknụzụ a na 2016 ma kemgbe ahụ guzobela onwe ya dị ka onye ndu n'ahịa. Teknụzụ Carbon, nke a maara dị ka DLS (Digital Light Synthesis), na-enye ọnụego mmepụta dị elu na ikike ịmepụta akụkụ nwere ihe ngwakọ siri ike, na-ejikọta thermosets na photopolymers. Ụlọ ọrụ ndị ọzọ, dịka 3D Systems (Foto nke 4), Origin (nke bụ akụkụ nke Stratasys ugbu a), LuxCreo, Carima, na ndị ọzọ, ewebatala teknụzụ ndị yiri ya n'ahịa.