Thanks!
Pilou, i have tried that, but on two complex models, these generator lines will never be the same just by measure by eye, and than the two surfaces (of the smaller and the larger) will intersect and make a hole in my model.
Elisei! That is a great tool, wasn't familiar with it! Looks exactly what I need! I'll try it tonight!!!
I greatly appreciate your support!!
Txs
Gabor