Revit DWG to Sketchup to STL

I have a building I want to 3d print. The revit model is very complicated. I exported it as a DWG and have been cleaning it up in sketchup so I can print it. This is a long process, and in some cases the pieces still don’t pass solid inspector, but can be printed relatively well. Does anyone have a plug in or workflow to go from Revit to Sketchup to STL?

Have you tried the Revit to STL export plugin?

Anssi