Method for producing three-dimensional shaped article, three-dimensional shaping apparatus, and three-dimensional shaping system

1. A method for producing a three-dimensional shaped article, comprising:

acquiring first shape data for indicating a shape of the three-dimensional shaped article, and identification information for identifying the three-dimensional shaped article;

generating second shape data for indicating the shape of the three-dimensional shaped article representing the identification information by an arrangement of layers having different characteristics using the first shape data and the identification information;

acquiring first identification information from a first three-dimensional shaped article;

acquiring first production information of the first three-dimensional shaped article using the first identification information;

determining whether the first three-dimensional shaped article is processed into a recycled material and reused using the first production information;

upon determining that the first three-dimensional shaped article is processed into a recycled material and reused, processing the first three-dimensional shaped article into a recycled material by grinding, and producing a second three-dimensional shaped article as the three-dimensional shaped article using the recycled material according to the second shape data; and

transmitting the identification information and second production information of the second three-dimensional shaped article to a server.

2. The method for producing a three-dimensional shaped article according to claim 1 , wherein

in the producing the second three-dimensional shaped article, the second three-dimensional shaped article is produced using an apparatus including a melting portion melting the recycled material, which has been ground, to form a shaping material, and a first nozzle and a second nozzle having an opening shape different from the first nozzle for ejecting the shaping material supplied from the melting portion,

a first layer of the second three-dimensional shaped article having a first characteristic is formed by ejecting the shaping material from the first nozzle, and

a second layer of the second three-dimensional shaped article having a second characteristic different from the first characteristic is formed by ejecting the shaping material from the second nozzle.

3. The method for producing a three-dimensional shaped article according to claim 1 , wherein

the characteristic includes a line width of the shaping material.

4. The method for producing a three-dimensional shaped article according to claim 1 , wherein

the characteristic includes an extending direction of the shaping material in the layer.