I am makinga a violin scroll using surfaces. At this point, I have it almost completed, but I need to make it a solid body. Thicken will not work because of the nature of the shape; thickening causes intersecting geometry. I tried to use the filled surface tool, but that does not seem to actually make it solid. In addition, the reason this needs to be solid is that I need to cut four holes into the side of the model. Apparently you can't do an extruded cut through a surface. Is there a different way to cut holes into a surface? Or, rather, I don't know how it works. I'm a bit new to surfacing.