This is a really cool project. I thought I would bring a quote in from one of the Lux developers so you could read it. "It looks like an interesting project. The developer still seems to be tweaking the exporter, so there doesn't seem to be a link to the latst test cannon .obj. One thing I would suggest to the programmer is to use the .obj 'o' directive to define different object layers. Many obj exporters use breaks in the vertex lines to define layers, but importers that rely on this will not play well with Sketchup export, as you may remember." -Arnie Cachelin