A three-dimensional shaping apparatus comprising a shaping material supply device, the shaping material supply device comprising: a first flow path through which a shaping material flows; a nozzle that communicates with the first flow path and discharges the shaping material; and a flow rate regulation mechanism that includes a butterfly valve provided in the first flow path, a drive shaft, and a valve drive portion for rotating the drive shaft, wherein the butterfly valve is a plate-like member in which a part of the drive shaft is processed into a plate shape; the three-dimensional shaping apparatus further comprising: a shaping material production section configured to melt at least a part of a material to produce a shaping material, wherein the shaping material production section includes a facing portion that has a communication hole communicating with the first flow path and has a heater, a flat screw, a surface of which faces a screw facing surface of the facing portion, the flat screw being configured to rotate so as to send the material to the communication hole, and including a groove portion formed in the surface of the flat screw, the groove portion being arranged to supply the shaping material to the communication hole as the flat screw rotates, wherein a plurality of guide grooves connected to the communication hole and extending in arc shapes from the communication hole toward an outer circumference of the screw facing surface are formed in the screw facing surface. a first flow path through which a shaping material flows; a nozzle that communicates with the first flow path and discharges the shaping material; and a flow rate regulation mechanism that includes a butterfly valve provided in the first flow path, a drive shaft, and a valve drive portion for rotating the drive shaft, wherein the butterfly valve is a plate-like member in which a part of the drive shaft is processed into a plate shape; the three-dimensional shaping apparatus further comprising: a shaping material production section configured to melt at least a part of a material to produce a shaping material, wherein the shaping material production section includes a facing portion that has a communication hole communicating with the first flow path and has a heater, a flat screw, a surface of which faces a screw facing surface of the facing portion, the flat screw being configured to rotate so as to send the material to the communication hole, and including a groove portion formed in the surface of the flat screw, the groove portion being arranged to supply the shaping material to the communication hole as the flat screw rotates, wherein a plurality of guide grooves connected to the communication hole and extending in arc shapes from the communication hole toward an outer circumference of the screw facing surface are formed in the screw facing surface. a shaping material production section configured to melt at least a part of a material to produce a shaping material, wherein the shaping material production section includes a facing portion that has a communication hole communicating with the first flow path and has a heater, a flat screw, a surface of which faces a screw facing surface of the facing portion, the flat screw being configured to rotate so as to send the material to the communication hole, and including a groove portion formed in the surface of the flat screw, the groove portion being arranged to supply the shaping material to the communication hole as the flat screw rotates, wherein a plurality of guide grooves connected to the communication hole and extending in arc shapes from the communication hole toward an outer circumference of the screw facing surface are formed in the screw facing surface.