I kept creating a hollow cylinder by spinning a curve [Example]. This is the hollow cylinder I made by spinning a second-order polynomial curve. The cylinder would be hollow but not "filled" or not "solid".
After I exported it into STL, it is still hollow. However, I need the cylinder to be solid. So is there a function to spin a surface to make a solid object using python script? If not, is there any other way to do it? Thank you