the error i get is a "DAE parsing issue". I tried to upload a simple cylinder mesh. Before sending this post i copied the dae file to a notecard ... a friend made it a dae again and it worked well. .... So, it's not the generated dae-file, it's not the viewer (we are using the same). I was using latest blender (2.64) and Firestoem latest (4.2.2). And the mesh upload staus thingies are both green. ... Any other questions?