Thanks Englishbob! :) The information in that thread is very usefull, I'm just downloaded the tutorials there, unfortunallety is to not make a tank track. jupiterkris, is right but I would like to go a one step ahead, see the picture I posted? well imagine that the hip and the part04 will be static no move at all, plus they need to be rigid, that means that they can't bend. The other parts will be bendable :) I'll try jupiterkris aproach. The problem that I'm having is that if you can weld by hand in the cr2 the hip with the end part? :) But who knows I will try it and let you know what happened. Regards Virus

SAL9000 - Hello Dr. Chandra, Will I've dream?