Three-dimensional fabrication apparatus and three-dimensional fabrication system

A three-dimensional fabrication apparatus configured to fabricate a three-dimensional fabrication object by extruding a fused filament to a fabrication plate that lowers in stages, the three-dimensional fabrication apparatus comprising:

• a supply part configured to supply the filament before being fused;
• a first extrusion part configured to draw in the filament supplied from the supply part and extrudes the filament downward;
• a first nozzle member configured to fuse the filament extruded by the first extrusion part and eject the fused filament to the fabrication plate;
• a first head unit to which the first extrusion part and the first nozzle member are fixed and configured to be movable along a direction in which the fabrication plate spreads;
• a second extrusion part configured to draw in the filament supplied from the supply part and extrude the filament downward;
• a second nozzle member configured to fuse the filament extruded by the second extrusion part and eject the fused filament to the fabrication plate, the second nozzle member including a nozzle outlet having a larger diameter than a nozzle outlet of the first nozzle member;
• a second head unit to which the second extrusion part and the second nozzle member are fixed and configured to be movable along the direction in which the fabrication plate spreads;
• a storage part configured to store fabrication data for fabricating the three-dimensional fabrication object, the fabrication data including a trajectory assigned to each of the first nozzle member and the second nozzle member;
• and
• a control part configured to, on a basis of the fabrication data stored in the storage part, control the first head unit so that a surface portion of the three-dimensional fabrication object is fabricated by the fused filament ejected from the first nozzle member, and control the second head unit so that an inner portion of the three-dimensional fabrication object is fabricated by the fused filament ejected from the second nozzle member.