2. lens. i made a nurb circle and lofted it. i made another one and placed it underneath. then i extruded another piece. how can i attach all 3 pieces into one? i tried the attach and align options but they had so many options that i didn't know what to do. i think it has to do with the surface i created with the circle. i can't select isoparms again.does a nurb object has to have depth in order to select isoparms? i just don't get the properties of iso..

i deeply appreciate this