Ho sebelisa photopolymerization ea VAT, haholo-holo laser stereolithography kapa SL/SLA, e ne e le theknoloji ea pele ea khatiso ea 3D 'marakeng. Chuck Hull o e qapile ka 1984, a e patentishene ka 1986, 'me a theha 3D Systems. Mokhoa ona o sebelisa lebone la laser ho etsa polymer ea thepa ea monomer e sebetsang ka har'a vat. Mealo e nang le photopolymer (e folisitsoeng) e khomarela poleiti ea kaho e tsamaeang holimo kapa tlase ho latela lisebelisoa, e leng se lumellang mealo e latellanang ho thehoa. Mekhoa ea SLA e ka boela ea hlahisa likarolo tse nyane haholo le tse nepahetseng ho sebelisa bophara bo bonyenyane ba lebone la laser, ts'ebetsong e tsejoang e le micro SLA kapa µSLA. Li ka boela tsa hlahisa likarolo tse kholo haholo ho sebelisa bophara bo boholo ba lebone le linako tse telele tsa tlhahiso, ka har'a boholo ba kaho bo lekanyang limithara tse fetang tse peli tsa likhubu.
Printa ea SLA-1 Stereolithography (SLA), printa ea pele ea khoebo ea 3D, e ile ea hlahisoa ke 3D Systems ka 1987.
Ho na le mefuta e mengata ea theknoloji ea photopolymerization ea vat e fumanehang kajeno. Ea pele e hlahileng ka mor'a SLA e ne e le DLP (Digital Light Processing), e ntlafalitsoeng ke Texas Instruments mme ea tlisoa 'marakeng ka 1987. Ho e-na le ho sebelisa lebone la laser bakeng sa photopolymerization, theknoloji ea DLP e sebelisa projektara ea leseli la dijithale (e tšoanang le projektara ea TV e tloaelehileng). Sena se etsa hore e be kapele ho feta SLA, kaha e ka etsa photopolymer lera lohle la ntho ka nako e le 'ngoe (e bitsoang ts'ebetso ea "planar"). Leha ho le joalo, boleng ba likarolo bo itšetlehile ka qeto ea projektara 'me boa fokotseha ha boholo bo ntse bo eketseha.
Joalo ka ho ntša thepa, stereolithography e ile ea fumaneha habonolo ka ho fumaneha ha litsamaiso tse theko e tlase. Litsamaiso tsa pele tse theko e tlase li ne li ipapisitse le lits'ebetso tsa pele tsa SLA le DLP. Leha ho le joalo, lilemong tsa morao tjena, moloko o mocha oa litsamaiso tse nyane tse theko e tlase haholo tse thehiloeng mehloling ea leseli la LED/LCD o hlahile. Phetoho e latelang ea photopolymerization ea vat e tsejoa e le photopolymerization ea "e tsoelang pele" kapa "e se nang lera", eo hangata e thehiloeng holim'a meralo ea DLP. Lits'ebetso tsena li sebelisa lera, hangata oksijene, ho nolofalletsa litefiso tsa tlhahiso tse potlakileng le tse tsoelang pele. Patent ea mofuta ona oa stereolithography e ngolisitsoe ka lekhetlo la pele ka 2006 ke EnvisionTEC, k'hamphani ea DLP eo ho tloha ka nako eo e ileng ea rehoa lebitso le lecha e le ETEC, kamora ho e fumana ke Desktop Metal. Leha ho le joalo, Carbon, k'hamphani e thehiloeng Silicon Valley, e bile ea pele ho bapatsa theknoloji ena ka 2016 'me ho tloha ka nako eo e ipapisitse le moetapele' marakeng. Theknoloji ea Carbon, e tsejoang e le DLS (Digital Light Synthesis), e fana ka litefiso tse phahameng haholo tsa tlhahiso le bokhoni ba ho hlahisa likarolo ka thepa e kopantsoeng e tšoarellang, e kopanyang li-thermosets le li-photopolymer. Likhamphani tse ling, tse kang 3D Systems (Setšoantšo sa 4), Origin (eo hona joale e leng karolo ea Stratasys), LuxCreo, Carima, le tse ling, le tsona li hlahisitse mahlale a tšoanang 'marakeng.
Nako ea poso: Hlakubele-29-2025
