Hi: I'm desesperatly looking for an example like that : A world that has something (1) turning around an object, and that object (1) that has another object (2) turning around (1) in a different plane. \ \ \ \ \ ---(1)---------- MAIN OBJECT ---------- <- principal plane \ Here \ \ \ <- Here the (2) object. Plane of rotation around (1) If you know any URL that contains this , PLEASE tell me. and if you have time to do, please send me... i will be very thankful !!. Naiad ------------------------------------------------------------------- *** Please send administrative requests to <majordomo@sdsc.edu> *** -------------------------------------------------------------------