Measurement method of three dimensional molding device

A measurement method of three dimensional molding device, the three dimensional molding device including

• a flow path through which a plasticization material plasticized by heat flows;
• a nozzle communicating with the flow path and configured to deliver the plasticization material outside;
• a pressure detection section that detects pressure of at least a part of the flow path;
• and
• a pressure generating section connected to the pressure detection section and configured to generate pressure, wherein
• the pressure detection section includes
• a cylinder connected to the flow path,
• a plunger pin slidably disposed in the cylinder,
• a transmission member connected to an opposite side of the plunger pin than the flow path, and
• a measuring section that is connected via the transmission member and measures a pressure received by the plunger pin from the plasticization material,
• the method comprising:
• a first pressure measurement step of measuring pressure of the pressure generating section as first pressure data;
• a second pressure measurement step of the measuring section measuring, as second pressure data, pressure generated by the pressure generating section biasing the plunger pin;
• and
• a third pressure measurement step of measuring a difference between the first pressure data and the second pressure data.