Greetings. Thanks again for your reply. nActually, your stream of questions has led me to the right answer. Funny how these things work lol The critical statement was in-fact the last, 'Also, your text file doesn't encode for a closed loop. It should. Look that up in Ansys Help.'. This prompted me to look at the user guide for DesignModeler, and within I found the following section:nApplying this to my own co-ordinates (which are supposed to define a closed curve), I was finally able to use the, 'Surface From Edges' function to make a surface and perform a Sweep. This resulted in the following geometry, which was my original target:nThanks a lot for your help, very much appreciated. Have a great day (-:nKyun