Three-Dimensional Shaping Apparatus And Shaping Method

A three-dimensional shaping apparatus comprising:

• a plasticizing unit configured to plasticize a material to generate a plasticized material;
• a nozzle including a nozzle opening and configured to discharge the plasticized material from the nozzle opening;
• a communication path configured to cause the plasticizing unit and the nozzle opening to communicate;
• a first flow path and a second flow path coupled to the communication path;
• a first plunger provided in the first flow path;
• a second plunger provided in the second flow path;
• a first drive unit configured to move the first plunger in the first flow path;
• a second drive unit configured to move the second plunger in the second flow path;
• a switching unit configured to switch a first state in which the first flow path and the nozzle opening communicate and the first flow path and the plasticizing unit do not communicate and a second state in which the second flow path and the nozzle opening communicate and the second flow path and the plasticizing unit do not communicate;
• and
• a control unit configured to control the plasticizing unit, the first drive unit, the second drive unit, and the switching unit, wherein
• after causing the first drive unit to advance the first plunger to discharge the plasticized material from the nozzle opening in the first state, the control unit causes the second drive unit to advance the second plunger to discharge the plasticized material from the nozzle opening in the second state.