I recommend the STL Extension by SketchUp, which appears in the File menu: File > Export STL.
If you do not have this menu item, then install the SketchUp STL extension from the Extensions Warehouse, and try again.
I cannot find the way to set Morisdov's ProperAnimation parameters from an external script !
I think there was at least one parameter that was mentionned in the forum but I can't seem to locate it again...
Any help ?
EDIT: ahem, I HAD to ask to find it ^^
Morisdov.transf_get("transf")
PS: this thread is so close to this one that it would seem natural to move it there...