Once the dough has rested cut into 4 equal portions. Set pasta roller to its widest setting and flatten a portion slightly with your hands. Work the portion of dough through the roller. Fold into thirds and re roll until smooth, folding after each roll. Once smooth, continue running pasta through roller without folding, increasing the setting each time until the pasta rolls smooth on number 5 or 6, depending on preference. Once all pasta has been rolled into smooth sheets, set up fettuccini cutter and use according to cutter instructions. Hang cut pasta to dry or use immediately.