[ggunners]

Thanks! I'll give the disk method with divide loop a try.

....later the same day.... I tried the method you describe with mixed results. The [surface] [divide] function does not produce concentric circles and I did not find a [divide loop] menu item in AC3D. I can create a sphere and then flatten it, then apply the UV map texture and proceed with extending and rotating each subsequent circle.

With this method, I have good results with about 60 surfaces.

-- ggunners