Karthik R
Unless you can get a fully close a surface from all the sides, you will not be able to generate a 3D solid. If there are small gaps between surfaces, then you will not be able to obtain a solid geometry. nAre you able to copy the second surface separately into a new SCDM session and are you able to close the capped surfaces? Please let me know if you are able to get the 3D body.nThanks.nKarthiknn