By Trimble : it's free! ;) http://www.teklabimsight.com/
Can be used for assemble some Moi 3D models and see complex models! ;)
Reload
SketchUp (.skp)
STEP (.stp, .step)
IGES (.igs, .iges)
etc...
Not very fabulous display! :)
Here the 2 models are in the same group!
Can be used also for make some clipping views of Moi3D objects! ;)
Several crossing clipping planes can be made and moved one by one
for cumulative sections cut!
Here only one!