Patent ID: 11931965
Assignee: ZHUHAI SAILNER 3D TECHNOLOGY CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G  Y | IPC B

Claim 0:
1. A 3D printing method, comprising:
obtaining, by a controller of a 3D printing device, multiple size groups corresponding to multiple postures of an object to be printed relative to a support platform; wherein each of the multiple size groups comprises a maximum size of the object measured in a first direction, a maximum size of the object measured in a second direction and a maximum size of the object measured in a third direction, and the first direction, the second direction and the third direction are orthogonal to each other;
selecting, by the controller of the 3D printing device, a size, a value of which is minimum, from all sizes in the multiple size groups as a first size;
in a condition that the number of the first size is one, determining, by the controller of the 3D printing device, a first size group comprising the first size; and taking, by the controller of the 3D printing device, directions in which three sizes in the first size group are located as three printing directions of the object for printing;
in a condition that the number of the first size is at least two, determining, by the controller of the 3D printing device, at least two first size groups in which each of the at least two first size groups comprises the first size; and selecting a size, a direction of which is orthogonal to directions in which the first sizes are located and a value of which is minimum in the at least two first size groups as a second size;
in a condition that the number of the second size is one, determining, by the controller of the 3D printing device, a second size group comprising the second size; and taking, by the controller of the 3D printing device, directions in which three sizes in the second size group are located as three printing directions of the object for printing;
in a condition that the number of the second size is at least two, determining, by the controller of the 3D printing device, at least two second size groups in which each of the at least two second size groups comprises the second size; and selecting a size, a direction of which is orthogonal to directions in which the first sizes and the second sizes are located and a value of which is minimum in the at least two second size groups as a third size; determining, by the controller of the 3D printing device, a third size group comprising the third size; and taking, by the controller of the 3D printing device, directions in which three sizes in the third size group are located as three printing directions of the object for printing; and
controlling, by the controller of the 3D printing device, a print head to print the object on the support platform.