| 摘要 |
The invention is a stereolithography method for the production of a three- dimensional object (10) through the superimposition of a succession of layers (1-5) obtained by solidifying a liquid material through exposure to predefined radiation (6), comprising the following operations: defining a geometric representation of the layers (1, 2, 3, 4, 5); selecting one or more layers (2) that precede a first layer (4) in the succession; defining a mask area (9) corresponding to the logical conjunction of the geometric representations of the first layer (4) and of the selected layers (2) reproduced on the plane of the first layer (4); exposing the liquid material to the predefined radiation (6) in the mask area (9). According to the method, before defining the mask area (9) the geometric representations of the selected layers (2) are modified in order to extend them with corresponding additional portions (2a) that project with respect to the geometric representations of the corresponding layers (2) as configured before the modification. |
