Import from AutoCad solids

[david.fung]

I have tried importing a ACAD solid (with straight and curved lines footprint) via the SAT format.

I have been able to create walls to straight face, but not curved face.

I am not able to create curtain wall systems to both straight and curved faces.

Did I miss any step here?

[tomnewsom]

Just import the dwg, no need to go through SAT.

[petervanko]

If I hear you correctly, you are applying Revit Building elements to ACAD solids? And some of those solids have curved faces? Evidently ACAD segements curvature and it is un-usable; have found Revit only can handle curved surfaces it creates.

If I may suggest the massing tools in Revit--they're superior to ACAD in a lot of ways...

[s.messing]

I have tried importing a ACAD solid (with straight and curved lines footprint) via the SAT format.
I have been able to create walls to straight face, but not curved face.
I am not able to create curtain wall systems to both straight and curved faces.
Did I miss any step here?

Curious to hear if this one has been addressed/ solved. I have been having a wide variety of import/ export problems with programs that I thought were more compatible with Revit. I had a consultant give me 3D solids from ADT to CAD and it took me over a month and help from every person on the planet just to get it to work for coordination. Then I posted a week or two ago with problems importing 3D CAD. The user was trying to make a complicated loft in Revit and couldn't do it, so he went to CAD. He made it just the way he wanted and then couldn't get it from CAD to Revit without losing most of the information. I tried it all the ways I could think of and ran into similar problems. I still haven't gotten an answer on this one. It seems that CAD won't let you save out to .sat for an import in Revit. I am sincerely hoping that either I will learn a lot more about importing and exporting in Revit, or that someone will make white papers that explain some of these more complicated transactions.
Cheers,
Stephen

[Scott D Davis]

ADT to Revit: Saveas AutoCAD from ADT to get basic 3D DWG objects with no ADT proxygraphics. Then follow the next step:

3D DWG to Revit: Form in AutoCAD should be a 3D solid, not 3D faces. In Revit, File>New>Family>Mass and import the 3D solids DWG into it. Save Mass, place Mass as a family in Revit, then apply "By Face" surfaces.

[crispin.schurr]

I think we found imports from AutoCAD to come in faceted (we were trying to make a lenticular roof at the time . . .)
We had a play creating NURBS in Rhinoceros, and importing as SAT files, and that worked perfectly. Can make some stunning forms easily.

Very limited control over Revit geometry once applied as walls, roofs etc (by face) to the mass model though. . .

C

[duvalsf]

Rhino and Max objects definitely work in revit for creating difficult shapes, but we are still encountering problems trying to get masses from those shapes. its great to have an interesting shape come into revit, but creating floor area faces requires mass objects that have volumes, and I cannot seem to find the right method to get a solid volume into revit outside of using autocad, but autocad will not for the same types of twisting shaped volumes that I can get from rhino and max.

any ideas?