SLA

Stereolithography (SLA) bụ teknụzụ nyocha ngwa ngwa a na-ejikarị eme ihe.Ọ nwere ike ịmepụta akụkụ polymer zuru oke na nke zuru oke.Ọ bụ usoro prototyping mbụ ngwa ngwa, nke 3D Systems, Inc. webatara na 1988, dabere na ọrụ onye mepụtara Charles Hull.Ọ na-eji laser UV dị obere, lekwasịrị anya nke ukwuu iji chọpụta akụkụ obe na-aga n'ihu nke ihe nwere akụkụ atọ n'ime vat nke polymer photosensitive mmiri mmiri.Ka laser na-enyocha oyi akwa ahụ, polymer na-esiwanye ike na ebe ndị ahụ gafere dị ka mmiri mmiri.Mgbe oyi akwa gwụchara, a na-ebugharị agụba ọkwa n'elu iji mee ka ọ dị nro tupu idowe oyi akwa ọzọ.A na-ewedata ikpo okwu site n'ebe dị anya hà nhata oyi akwa (nke na-abụkarị 0.003-0.002 na), a na-emepụta oyi akwa na-esote n'elu ọkwa ndị emechara mbụ.A na-emeghachi usoro a nke ịchọta na ire ụtọ ruo mgbe arụchara ya.Ozugbo emechara, a na-ebuli akụkụ ahụ elu n'elu vat ahụ ma kpochapụ ya.A na-asacha ma ọ bụ kpochaa polymer karịrị ya n'elu.N'ọtụtụ ọnọdụ, a na-enye ọgwụgwọ ikpeazụ site n'itinye akụkụ ahụ na oven UV.Mgbe ọgwụgwọ ikpeazụ gasịrị, a na-ebipụ ihe nkwado ahụ ma na-egbuke egbuke, na-agba aja ma ọ bụ gwụchaa.