How can I achieve a smooth finish on rounded edges through sanding?

To achieve a smooth finish on rounded edges through sanding, start with a coarse grit sandpaper to shape the edge, then gradually move to finer grit sandpaper to smooth out the surface. Use a sanding block or sponge to maintain even pressure and avoid creating flat spots. Sand in a circular motion to follow the curve of the edge and finish with a final pass using a very fine grit sandpaper for a polished look.