Some AutoCAD add-ons use a workaround that inserts a blank element where you want an opening in a wall or floor. We know many clients have had this experience, for example, with the MagiCAD plug-in for AutoCAD. But usually you need real openings, not provisions that cause clashes and fail to reflect the actual structural geometry. So, a common question we get is, “Can you insert a real opening in place of a void that came from an IFC file?”
With Cut Opening, you can!
Here’s a workflow you can follow to insert REAL openings in your Revit project.
- Change AutoCAD MagiCAD’s void provision category from “Generic Model” to “Duct.” (Cut Opening doesn’t work with Generic Models.)
- Save the .rvt file.
- Link .rvt file to your architectural / structural model.
- Run an Interference Check.
- Export the Interference Check data as an .html file.
- Prepare your Cut Opening configuration.
- Combine Configuration and Clash detection data.
- Insert Openings.
Here we might run into a problem: We can't insert openings if an element’s Width, Height, and Length are all equal (i.e. a cube) OR its Length is less than the Height or Width. To overcome this:
- Open MEP file.
- Stretch rectangular elements so that Cut Opening can recognize the Length dimension. Length should be greater than the Width or Height parameters.
- Open the architectural / structural model, and run Cut Opening once again.
So, in between Steps 8 and 9, we run into a strange situation: Cut Opening cannot understand where the Width and Height parameters are, so we have to do some manual rework on the MagiCAD elements. But it’s easy peasy. :-D
Hope this helps you turn your voided elements into REAL openings in your Revit project!
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