Creating Revit Families From Imported 3D Geometry

One of the big advantages of using Autodesk Revit family creation is that you can import 3D geometry from supported file formats and applications.

This functionality leverages sophisticated technology in order to provide more consistent and higher quality 3D imports than other technologies. When imported into projects and families, these 3D shapes adopt some of the behaviour of the assigned Revit categories. As a result, the shapes provide greater intelligence in the model than other types of imported geometry.

You can import the following 3D formats:
3DM (Rhino)
SAT (Solidworks, Creo)
DGN (Microstation)
SKP (Sketchup)

Imported 3D shapes are not families; however, and when you import a 3D shape into a family, the shape assumes the category of the family and some of the behaviours of the assigned categories. (Revit has a limited understanding of the imported geometry and is not able to fully support all of the behaviours supported for native Revit geometry).

Start your family using the desired template - e.g. Metric Generic Model.rft - the category can be defined later.

To import the 3D geometry, go to Insert tab > Import panel > (Import CAD). In the Import CAD Formats dialog, for Files of type, select one of the following:

revit families cover

Navigate to the folder that contains the file to import, select the file, and click Open. If you cannot instantly see the imported geometry you may need to zoom all (keyboard shortcut ZA) and then unpin and reposition the geometry.

If required you can set the Category, using the Family Category and Parameters tool.

revit families 2

You cannot edit or revise the imported 3D shape in Revit. If changes are required, use the originating application to modify the geometry. In Revit, delete the imported shape from the family, and re-import it. You must re-establish any dimensioning, snapping, and other behaviours for the imported shape in Revit.

If you are looking for additional features to give your projects the edge, take a look at the fantastic Graitec PowerPack for Revit. If you have any questions, please send us a message now:

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