JibbSmart and HeelX, thanks a lot for your useful inputs.
Thanks especially for the pictures, HeelX, they actually give some insight.
I hope that I find time in the near future to build such models to see how it works out in Acknex.

http://www.puppenheim.org/
http://www.wuerfels-welt.de
Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip
Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip
http://www.puppenheim.org/blender_starting_main_settings.txt