@pixero said: I usually do it like this. In Max make sure the materials are scan line not vray. Export as obj to the same folder that the textures are in. I then use Simlab composer to convert the obj to skp. I think you can export a few models with the demo version. or direct export from max to skp via Simlab exporter for MAX . So far, that one worked seamlessly.

@joncobreti said: ( just i was wondering.....what do you think about use meshlab for simplify the mesh adn late use basic netfabb for fix the error......??) and is better try to create a single mesh like a skin....or print the base for one side and all the buildind box for another...? Thank you Antonio, how big will the final model be? If larger than your printer, you need more than one mesh - either you make a single mesh and cut it up, or you model the pieces separately from the beginning. If the entire model will fit on your printer, then you can use a single mesh. Regarding Meshlab and Netfabb...you need to get the model a little better before those programs will help you. The Google Earth terrain is probably has no thickness, so you need to work on that first. Then I recommend cloud.netfabb.com for fixing the file - if it doesn't work, then you'll have to go back to Sketchup and do some fixing up.