Save a Model to an IFC File

IFC Converter

Saving a model to an IFC file requires the IFC Converter add-on option. You can select the object types and drawing-model pairs of the project to be converted.

Before selecting the function, you can hide the objects that you do not want export to the IFC filed from the model.

  1. Do either of the following:
    • Select > Save As.
    • Select > Export IFC Export.
  2. Select either IFC File (*.ifc) or IFC Compressed Files (*.ifczip) as the file type.
  3. Select the saving folder and enter a name for the file.
  4. Select Save.
  5. Select the object types and drawing-model pairs to be transferred.
    • You can select all object types to be transferred or clear all of the selections by clicking All/None.
    • You can select to transfer all the architectural or framing drawing-model pairs at once by clicking Architectural or Framing.
  6. Select the property sets according to which data is transferred from objects to the IFC file.
    • IFC Standard Common Property Sets
    • Vertex Property Sets
    • User-defined Property Sets

    IFC Property Sets

  7. Select the origin point of the IFC model at the Coordinates relative to section.
    • Model origin - Select the model origin as the origin point.
    • Site origin - Select the site origin.
    • Origin of imported IFC model - You can select the origin of an imported IFC model as the origin of the IFC when the project has only one imported IFC model and the options Locate to site origin of project or Locate to building origin of project have been used in import.
    • Model point - You can use this option if your project has an IFC model that has been imported using the Locate to Point of IFC model option. The geometry of the IFC model has been moved to the origin of the model using this point as the reference point. In IFC export, you can move the geometry back to its original location.
    • If the north direction has been defined in the building coordinates, you can rotate the building to the north direction (y axis parallel to north direction) by selecting Rotate to north direction. You can also use the feature to rotate the geometry of the building by entering a rotation angle in the field. The angle is calculated in the clockwise direction starting from the positive y-axis.
    Note: Setting the coordinates and height of the site origin and the north direction, see Building Coordinates and Heights.
  8. If necessary, edit the project information to be written to the IFC file by clicking Project Info.
    This function opens a dialog box with fields on the left showing the information to be written to the IFC file. The fields on the right show the information to be read from the project archive. When you open the dialog box for the first time, the contents of the fields are the same on both the left and right. You can edit the contents of the fields to be written to the IFC file. Fields with different contents in the IFC project information than in the project archive are highlighted in a different color. You may have edited the IFC project information, or the project information has changed in the project archive. You can select the following functions:
    • Update - Update the IFC project information to match the information in the project archive.
    • Clear - Clear all the IFC project information fields.
  9. Select the saving location of the IFC file by clicking Browse.
  10. Confirm by clicking OK.

    You will receive a warning if the file already exists with the same name. If necessary, you can enter a new file name.

Note: When you save a main project including a sub project to an IFC file, you will receive an error message, if another user has reserved the sub project.