I am attempting to design a fan similar to a turbocharger turbine, and I opted to use a lofted surface to design one of the fan blades. I would like to create a circular pattern with the individual fan blade, but I am unable to select the "lofted surface" feature in the circular pattern tool. An alternative I have also tried is to thicken the lofted surface that composes the individual fan blade and afterward apply the circular pattern to the "thicken" feature, but I receive an error stating that the surface cannot be thickened. What might be causing these issues? I have attached the file I am working with.