Excavations with Revit and Dynamo, Topology.Faces box

I genuinely can’t see what the error is. Could you upload a minimal version of both Revit and Dynamo file that reproduces the error?

@jostein_olsen
ExcavationVolume.dyn (32.4 KB)

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Hi,
You have to add a true value to the Mesh.ToPolysurface node and reset the boolean toggle at the beginning of the script, se below:

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@jostein_olsen
it worked thank you very much :slight_smile:

@jostein_olsen
i’d like to ask you if i’d like to generate 3 types of excavation for the same revit file
for example :
1st excavation for single foundations
2nd excavation for salb
3d excavation for slab edge
and every excavation has different proprties than others
how can i do this using your dynamo file?