CAD tip # 9852:

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How to convert 3D CAD solids to Revit parametric BIM families?

A standard import of 3D solids from DWG and other CAD formats does not allow exploding and editation in Revit projects.

Using the import in the in-place component mode can help to bring in such 3D models and edit them in Revit. By adding reference planes and parameters you can convert the imported 3D model to a standard Revit parametric 3D family (.RFA file).

See the video illustrating the conversion process from an AutoCAD 3D model (retaining wall) from a DWG block to a RFA family:

RevitDWG

* CAD

2.6.2014 44921×

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Revit

AEC Collection

applies to: Revit · DWG ·

See also:
Tip 14075:	Overview of CAD formats supported in Inventor 2025 (import/export/AnyCAD).
Tip 13692:	What is the precision in Revit?
Tip 13541:	Using Twinmotion from Revit to visualize other types of 3D scenes.
Tip 13404:	How to import an IFC file in AutoCAD?
Tip 13402:	Which products and features can I use for free with Flex Token licensing?

Selected tip: Overview of your complex linetypes.

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