An optical modeling method for modeling a three-dimensional object, including a movement in which the support surface of the object intermittently approaches the bottom of the container, and an optical modeling apparatus using the method

摘要

The present invention is a method of modeling a three-dimensional object in a layer shape by stereolithography, and the following operation: support surface (6a, 7a) to the vicinity of the bottom (2a) of the container (2) containing the liquid substance (3) ) To place this support surface in a predetermined operating position (17); selectively irradiate a layer (6) of liquid material (3) with a predetermined radiation (4) to support this layer It is a method including bringing into contact with the surfaces (6a, 7a) and solidifying. The approaching motion (11) includes a plurality of approaching motions (12, 12a, 12b, 12c) having a corresponding predetermined length (13, 13a, 13b, 13c), and the approaching motion is a corresponding predetermined time interval. (15, 15a, 15b) with the corresponding intermediate stops (14, 14a, 14b) in between, the intermediate stops (14, 14a, 14b) have the support surfaces (6a, 7a) in the liquid substance (3) Performed when at least partially immersed. [Selection] Figure 1