3d printer capable of multiple sub-printing actions, and sub-printing method for using the same

A 3D printer capable of multiple sub-printing actions, comprising:

• a processor (10), configured to record a segment-template (101);
• a tank (11), arranged to contain material liquids (2);
• a printing platform (12), arranged upon the tank (11) and electrically connected with the processor (10), configured to be controlled by the processor (10) to immerse in the material liquids (2);
• an illuminating unit (13), arranged below the tank (11) and electrically connected with the processor (10), configured to be controlled by the processor (10) to illuminate light toward a bottom of the printing platform (12);
• wherein, the processor (10) is configured to obtain a record of slicing data (3) corresponding to one of a plurality of printing layers of a 3D object when performing printing, and to perform a logical segmentation action to the slicing data (3) according to the segment-template (101) for generating a plurality of printing blocks (4), and the processor (10) is further configured to perform a labelling action respectively to each of the printing blocks (4) according to a printing rule for deciding a printing order of each of the printing blocks (4);
• wherein, the processor (10) is configured to control the illuminating unit (13) to separately perform multiple sub-illuminating actions according to the plurality printing blocks (4) based on the decided printing order for printing a slicing object (31) corresponding to the printing layer.