첨삭가공, 즉. 첨삭 집합체, 첨삭복합체 또는 첨삭레이어링(layering)에 의한 3차원[3d] 물체, 예. 3d프린팅, 스테레오그라피(stereography) 또는 선택적 레이어 신터링(sintering)  additive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering