[image] [image] This is why the output is not solid, even though the input is all solid geometry

Remove any columns which always return solids, then any walls which return solids on those columns. Then post the RVT here or elsewhere for review.

Hi @ikhsan.pc , My first instinct is related to the way your solids are connected to eachother. For example in my expert drawing below the intersection between 2 solids is a line. [image] However, I’ve seen cases where seemingly intersecting objects also return weird results, that is probably be…

Here I link the column structure with the architect’s wall, that intersection

I guees it gives lines when on tangent [Skærmbillede 2023-09-29 114350]

Geometry Intersection All not solid output

Revit

Daan September 29, 2023, 9:35am 5

Hmm that’s weird, I would also assume that this would result in solids. Perhaps the BimorphNodes Clash detection nodes give better results. BimorphNodes v2.1 Released with Ultra-Efficient Clash Detection and Geometry Intersection Nodes

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Geometry Intersection All not solid output

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