Stereolithography (SLA) waa tignoolajiyada ugu dhaqsaha badan ee la isticmaalo.Waxay soo saari kartaa qaybo polymer aad u sax ah oo faahfaahsan.Waxay ahayd habraacii ugu horreeyay ee degdeg ah, oo ay soo bandhigtay 1988-kii 3D Systems, Inc., oo ku salaysan shaqada hal-abuuraha Charles Hull.Waxay isticmaashaa laysar UV oo awood yar leh si aad u foojigan si ay u raadiso qaybaha isdhaafka ah ee shay saddex-cabbir ah oo ku jira tamar polymer sawir-qaade dareere ah.Sida laysarka u raadiyo lakabka, polymer-ku wuu adkaadaa oo meelaha xad-dhaafka ah ayaa looga tagay sidii dareere.Marka lakabka la dhammeeyo, daab siman ayaa loo dhaqaajiyaa oogada sare si loo simo ka hor inta aan la dhigin lakabka xiga.Barxadda waxaa lagu soo dejiyaa masaafada u dhiganta dhumucda lakabka (sida caadiga ah 0.003-0.002 in), lakabka xiga ayaa lagu sameeyay dusha sare ee lakabyada hore loo dhammeeyey.Habkan raadraaca iyo fududaynta waa soo noqnoqda ilaa dhismuhu dhammeeyo.Marka la dhammeeyo, qaybta ayaa kor loo qaadayaa maaskada oo laga daadi.Polymer-ka xad-dhaafka ah waa la xaaqaa ama laga fogeeyaa sagxadaha.Xaalado badan, daawaynta kama dambaysta ah ayaa la bixiyaa iyada oo qaybta la geliyo foornada UV.Daawaynta kama dambaysta ah ka dib, taageerayaashu waa la gooyaa qaybta oo dushana waa la nadiifiyaa, la miiray ama si kale loo dhammeeyey.