| CPC B29C 64/393 (2017.08) [B29C 64/118 (2017.08); B29C 64/209 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12)] | 4 Claims |
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1. A method for manufacturing a three-dimensional shaped object in which a three-dimensional shaped object is manufactured based on the layer data by discharging a shaping material from a discharge unit, the method for causing a processor to execute a program stored in a memory, the method comprising executing on the processor the steps of:
(A) a step of generating first shaping data based on the layer data, the first shaping data including information of a first discharge path for forming an outer shell shape of the three-dimensional shaped object, and information for specifying a first line width of the first discharge path;
(B) a step of generating second shaping data based on the layer data, the second shaping data including information of a second discharge path for filling an infill area that is an inner side portion of the outer shell shape, and information for specifying a corresponding one of a plurality of second line widths of the second discharge path; and
(C) a step of shaping the three-dimensional shaped object according to the first shaping data and the second shaping data,
wherein the step (B) includes:
(D) a step of generating a circumscribed rectangle that circumscribes an outer circumference of the infill area, the outer circumference of the infill area being an outer most polygon;
(E) a step of generating a plurality of rectangles, each of the plurality of rectangles having a similar reduced area with respect to the circumscribed rectangle by different reduction rates, an inner rectangle of the plurality of rectangles being completely enclosed by an outer rectangle of the plurality of rectangles, a distance between a periphery of the inner rectangle and a periphery of the outer rectangle being less than a maximum line width;
(F) a step of identifying a plurality of points on a periphery of an inner most rectangle of the plurality of rectangles, the plurality of points corresponding to vertices of the outer most polygon,
(G) a step of drawing a plurality of linear lines, the plurality of linear lines connecting between the vertices of the outer most polygon and the plurality of points on the periphery of the inner most rectangle;
(H) a step of equally dividing each of the plurality of linear lines by a number of the plurality of rectangles to identify divided points on each of the plurality of linear lines;
(I) a step of connecting corresponding divided points of the plurality of linear lines to form a plurality of polygons, at least on vertex of one polygon of the plurality of polygons being at least one vertex of one rectangle of the plurality of rectangles;
(J) a step of identifying a plurality of areas, the plurality of areas having peripheries of the plurality of polygons;
(K) a step of comparing a width of each of the plurality of areas defined by the peripheries of the plurality of polygons with a reference line width to determine the corresponding one of the plurality of second line widths for each of the plurality of areas,
the second discharge path is formed by continuously connecting the plurality of areas from an outer most area of the plurality of areas toward an inner most area of the plurality of areas, and the inner most area is the inner most rectangle, and
two adjacent polygons among the plurality of polygons are different in shape and size from each other.
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