Post #582493 by GROG on Wed, Mar 30, 2011 8:46 AM

To get the top and bottom flat, lay sand paper flat on the table and move your mug around in a circular motion, turn over, and do the opposite end. Don't press down or you'll bust the sides. Don't do it when it's too dry and brittle because the sides will break, and don't do it when it's too wet because it will collapse. The best time is when it's leather hard or just a little drier than leather hard.