Another thing you might do to make things easier would be to take this curve here which is made up of 3 segments:
Join those together and run the Rebuild command on it
http://moi3d.com/2.0/docs/moi_command_reference10.htm#rebuild
You get those additional edges in your original one because the curve that you were extruding was made up of several segments - the segmentation of the curve will come through into surfaces that you construct from it, with one face for each segment of the original curve.
So you can eliminate those interior edges by reforming the curve to be made up of just one single smooth segment instead of being multiple segments - the Rebuild command is the easiest way to reconstruct a curve like that.
Then when you extrude it, you'll see it's just one surface instead of multiple faces:
- Michael
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