Control method for three-dimensional additive manufacturing apparatus, control method for three-dimensional additive manufacturing apparatus, and control program for three-dimensional additive manufacturing apparatus

摘要

The object of the present invention is to form a three-dimensional layered object having a corner portion with high accuracy in three-dimensional layered modeling. The present invention is a three-dimensional additive manufacturing apparatus, comprising: a material supply unit that supplies a material of a three-dimensional additive manufacturing object onto a modeling table; a light irradiation unit that irradiates light; and a scanning direction and a scanning speed of the light. From the control part to control, the modeling model acquisition part to acquire the modeling model of the three-dimensional layered object, the modeling path determination part to determine the modeling path based on the acquired modeling model, and the determined modeling path, An extraction unit that extracts a start point and an end point of the modeling path and a relay point where the direction of the modeling path changes, and an additional path determination unit that determines an additional path for at least one of the extracted start point, the end point, and the relay point The control unit controls a scanning direction and a scanning speed of the light beam based on the modeling path and the additional path.