[...] 4.这是一个从Rhino建模到Revit变成建筑体量的实际操作，嗯，不错可以学一下： http://designreform.net/2008/07/17/rhino-autocad-revit-linking-complex-form-to-drive-massing/ [...]

An extremely informative, concise, and very easy to follow tutorial. I am just learning the basics of Revit, and from your small tutorial showed many aspects and techniques that displays the power of the BIM software. Thank you!

Secondly, I know the ability of other 3d software has far more potential that what AutoCAD can do with solids (using polylines to create solid objects and 3d faces), but was wondering if you knew the LOFT command in AutoCAD. I have used this in many conceptual models to create an airplane wing, mechanical transition, all the way to the “tower” design you put together quickly.

To use LOFT. Execute the command, then select the polylines in the order you want the solid to be created. This command does a seamless interpolated AutoCAD solid of the polylines you created.

Hi Dave,

Thanks again for the great video. I was wondering if you know of a way to export a polymesh from rhino into autocad as an IGES files or how to convert a mesh into a solid. I am trying to model terrain and the CNC guy needs a IGES file but I cant export IGES from rhino as a mesh.

[...] Learn how to link complex organic geometry that was modeled in Rhino into Revit as a mass element [...]

Hi,
I tried to link the CAD file inside the mass family, but the link option was not enabled.
so I import CAD file directly in revit using Link option and then I made a copy of this system family inside the mass family, it worked! .
Now you can use Manage Links from file menu to reload your DWG file in Revit.you dont need to keep main instance which you have imported at first in the Revit, you can remove it.