Ha!! That clears up quite a few things for me. I appreciate your help.

Don

I've run into another problem in that I can only get the convert SphericalY to work once; it fails on a second command.

I've pared everything down to essentials in the worksheet "SphY_test" that I just uploaded so that my problem should be clear.

Is there a fix?

Don

I've also tried reading a Maple 10 exported dxffile in AutoCad's eDrawing. What should be a number of 3D Faces only shows up as a bunch of points along a 45 degree line in the viewing plane. Does Maple 10 export as dxf work for anyone? Don Ritchie