I-Stereolithography (SLA) yeyona nto isetyenziswa kakhulu kwitekhnoloji yeprototyping ekhawulezayo. Inokuvelisa iindawo zepolymer ezichaneke kakhulu nezineenkcukacha. Yayiyinkqubo yokuqala ekhawulezayo yokuchwetheza, eyaziswa ngo-1988 yi-3D Systems, Inc., esekwe kumsebenzi womqambi uCharles Hull. Isebenzisa amandla aphantsi, i-laser ye-UV egxile kakhulu ukukhangela amacandelo alandelelanayo ento enomacala amathathu kwivathi yolwelo yepolymer ebonayo. Njengoko i-laser ilandelela umaleko, i-polymer iyaqina kwaye iindawo ezingaphezulu zishiywe njengolwelo. Xa umaleko ugqityiwe, iblade yokulinganisa ihanjiswa kuwo wonke umphezulu ukuze igudiswe ngaphambi kokubeka umaleko olandelayo. Iqonga lihlanjululwa ngumgama olingana nobukhulu bengqimba (ngokuqhelekileyo i-0.003-0.002 ngaphakathi), kwaye uluhlu olulandelayo lwenziwe phezu kweengqimba ezigqityiweyo ngaphambili. Le nkqubo yokulandelela kunye ne-smooling iphinda iphindwe kuze kube yilapho ukwakhiwa kugqityiwe. Nje ukuba igqityiwe, inxalenye inyuswa ngaphezu kwevat kwaye ikhutshwe. Iipolymer ezigqithileyo ziswabhuka okanye zihlanjululwe kude nomphezulu. Kwiimeko ezininzi, unyango lokugqibela lunikezelwa ngokubeka inxalenye kwi-oven ye-UV. Emva konyango lokugqibela, izixhaso ziyasikwa inxalenye kwaye iindawo eziphakamileyo ziphuculwe, zenziwe ngesanti okanye zigqitywe ngenye indlela.