Three-dimensional shaping device

A three-dimensional shaping device, comprising:

• a plasticizing unit configured to plasticize a material to generate a plasticized material;
• a stage having a deposition surface on which the plasticized material is deposited;
• an ejection unit that has a plurality of nozzles arranged side by side along a first axis parallel to the deposition surface of the stage, and that is configured to eject the plasticized material in a continuous linear form from the plurality of nozzles toward the deposition surface;
• an ejection switching unit configured to individually switch between stopping and resuming ejection of the plasticized material from the plurality of nozzles;
• a moving unit configured to move the ejection unit with respect to the stage along a second axis that is parallel to the deposition surface of the stage and that intersects the first axis;
• and a control unit configured to laminate a shaping layer formed of the plasticized material on the deposition surface of the stage by controlling the plasticizing unit, the ejection switching unit, and the moving unit;
• wherein the ejection unit includes a plurality of individual flow paths each communicating with a respective one of the plurality of nozzles, the ejection switching unit includes a plurality of valves each provided corresponding to a respective one of the plurality of individual flow paths, and the control unit individually switches between stopping and resuming the ejection of the plasticized material from the plurality of nozzles by individually opening and closing the plurality of valves.