Nope.

GoogleSketch : export collada
Belnedr 2.6 : import collada, export any format (obj, FPX, 3DS)
MED : import any format (obj, FPX, 3DS)

There is optomisation under Blender as Sketchup don't do it.
"Merge Vertices"
Caus Sketchup just make holes without welding the object ot the other.

Last edited by ratchet; 02/13/13 13:09.
Just do It !!

http://independentcreator.over-blog.com/pages/3D_Models-7792999.html