thank you very much i will try right now...in the dvd when he extrude the wall,first of all in the new version of maya the option box of face extruder is lot moore simple and when i do extrude the same way as he does i dont get the (up,down,side face filled up),what i mean is it instead of doing what he does its simply seam to do a copy of my first wall....someone have any idea of what im doing wrong ?