I have everything positioned as I would like in the model, but I cannot figure out how to manipulate the space between the imported surface and the offset imported surface so that the part has a solid center. I first tried to thicken the existing imported "G" core, but I kept receiving an error regarding too small of radii for the 0.20 inch thickness I was going for. I then tried to delete and patch those indicated areas and still didn't have any luck. I also attempted lofting, and knitting the surfaces to the solid part of the letter but have not had any success. If anyone has any ideas it would be greatly appreciated.