Wow that p3d site is cool. Someone should make a plugin so that links are embedded into the page like Kingdaro's youtube thing.
you can embed it I'm looking ito itnvm
well im not much of a sketching guy
on your model not your drawing
also one more thing, make sure all your normals are on the outside or they won't appear in p3d.in
In blender select all everything and pres Ctrl-n.