Dunkel,

Remember that exporting/importing a model in SH3D only allows rotation by 90 degrees. Nevertheless it's a start.

Another possibility might be to use a 3D design program like Art of Illusion or Misfit 3D . Both are open source, run under Windows, Linux and Mac, and are (more or less) easy to use. Blender is another possibility, more possibilities, but more complex. All programs can export to OBJ format.

You could design something in these programs, give it the desired rotation, or you could import a model and rotate it, and then export it. I'm busy translating and updating a tutorial for Art of Illusion, and am thinking about writing a starters tutorial for Misfit 3D.

Hans