3D Solid from Revit to AutoCAD Edges

[jwilliams]

I am attempting to convert a 3D solid, created and exported from Revit 2010 (as a ACIS solid) to lines in AutoCAD. I have tried exploding, but the solid becomes a region and the region will not explode. Xedges only gives me the linear segments (no curves). Any thoughts as to why these techniques won't work?

3D Slab 2010 acis solid.dwg

[ReMark]

Per AutoDesk:

 

"Autodesk Revit can import and export models to DXF™ and DWG formats."

 

Why was it necessary to export your 3D Revit solid as an ACIS solid to get it into AutoCAD? Just curious. I have no experience with Revit.

[jwilliams]

Well the final destination for this file is survey software that reads in AutoCAD R14 DWGs. What I need to do is take solids out of Revit, and convert the edges or intersections to points and lines with elevation data intact. AutoCAD is the middleman.

[ReMark]

Thank you for taking the time to educate me. Much appreciated.

[jwilliams]

Re-reading your post, I realized I didn't fully answer your question. I could have exported out of Revit as a polymesh, an ACIS solid or a ACA object as well. Those are the 3 options when exporting a 3D object out of Revit 2010 to AutoCAD DWG.