Konke okufuneka ukwazi malunga nexesha elidlulileyo, langoku nelizayo le-sterolithography

I-Vat photopolymerization, ngakumbi i-laser stereolithography okanye i-SL/SLA, yayiyeyona teknoloji yokuqala yokuprinta ye-3D kwimarike. UChuck Hull wayisungula ngo-1984, wayinika ilungelo lobunikazi ngo-1986, waza waseka ii-3D Systems. Le nkqubo isebenzisa umqadi welaser ukwenza i-polymerize ye-photoactive monomer kwi-vat. Iileya ze-photopolymerized (ezilungisiweyo) zinamathela kwipleyiti yokwakha ehamba phezulu okanye ezantsi kuxhomekeke kwi-hardware, ivumela ukuba kubekho iileya ezilandelelanayo. Iinkqubo ze-SLA zinokuvelisa iindawo ezincinci kakhulu nezichanekileyo zisebenzisa ububanzi obuncinci be-laser beam, kwinkqubo eyaziwa ngokuba yi-micro SLA okanye i-µSLA. Zinokuvelisa iindawo ezinkulu kakhulu zisebenzisa ububanzi obukhulu be-beam kunye namaxesha amade emveliso, ngaphakathi komthamo wokwakha olinganisa ngaphezulu kwee-cubic metres ezimbini.

Iprinta ye-SLA-1 Stereolithography (SLA), iprinta yokuqala ye-3D yorhwebo, yaziswa yi-3D Systems ngo-1987.

Kukho iintlobo ngeentlobo zobuchwepheshe be-vat photopolymerization ezikhoyo namhlanje. Eyokuqala ukuvela emva kwe-SLA yayiyi-DLP (Digital Light Processing), eyaphuhliswa yiTexas Instruments yaza yaziswa kwimarike ngo-1987. Endaweni yokusebenzisa umqadi welaser kwi-photopolymerization, ubuchwepheshe be-DLP busebenzisa iprojektha yokukhanya kwedijithali (efana neprojektha yeTV eqhelekileyo). Oku kuyenza ikhawuleze kune-SLA, njengoko inokupholisa umaleko wonke wento ngaxeshanye (ebizwa ngokuba yinkqubo "ecwangcisiweyo"). Nangona kunjalo, umgangatho wamacandelo uxhomekeke kwisisombululo seprojektha kwaye uyawohloka njengoko ubungakanani bukhula.

Njengokukhutshelwa kwezinto, i-sterolithography iye yafikeleleka ngakumbi ngokufumaneka kweenkqubo ezingabizi kakhulu. Iinkqubo zokuqala ezingabizi kakhulu bezisekelwe kwiinkqubo zokuqala ze-SLA kunye ne-DLP. Nangona kunjalo, kwiminyaka yakutshanje, isizukulwana esitsha seenkqubo ezincinci ezingabizi kakhulu ezisekelwe kwimithombo yokukhanya ye-LED/LCD siye savela. Utshintsho olulandelayo lwe-photopolymerization ye-vat lwaziwa ngokuba yi-photopolymerization "eqhubekayo" okanye "engenamaleko", ehlala isekelwe kuyilo lwe-DLP. Ezi nkqubo zisebenzisa i-membrane, ngesiqhelo i-oxygen, ukuvumela amazinga emveliso akhawulezayo naqhubekayo. Ilungelo elilodwa lomenzi lolu hlobo lwe-sterolithography labhaliswa okokuqala ngo-2006 yi-EnvisionTEC, inkampani ye-DLP eye yabizwa ngokuba yi-ETEC, emva kokuthengwa kwayo yi-Desktop Metal. Nangona kunjalo, iCarbon, inkampani eseSilicon Valley, yayiyeyokuqala ukuthengisa obu buchwepheshe ngo-2016 kwaye ukususela ngoko iye yazimisela njengenkokeli kwimarike. Itekhnoloji yeCarbon, eyaziwa ngokuba yi-DLS (Digital Light Synthesis), inikezela ngamazinga aphezulu emveliso kunye nokukwazi ukuvelisa iindawo ngezinto eziqinileyo ze-hybrid, ukudibanisa ii-thermosets kunye nee-photopolymers. Ezinye iinkampani, ezifana ne-3D Systems (Umfanekiso 4), i-Origin (ngoku eyinxalenye yeStratasys), i-LuxCreo, i-Carima, kunye nezinye, nazo zivelise ubuchwepheshe obufanayo kwimarike.