Affix the pasta roller attachment to your KitchenAid mixer.
Cover your countertop with parchment paper. Lightly dust the paper with semolina flour.
Split the dough into four quarters. Using a rolling pin, roll one quarter of the dough into an elongated shape about 1 cm thick.
Using the widest setting of the KitchenAid pasta roller ("1"), pass 1/4 of your pasta dough through the rollers three times.
Reduce the pasta roller width to medium width ("4"), pass the pasta dough through the rollers three times. If necessary, dusk with semolina flour.
Then, reduce the pasta roller width to your preferred thickness width (e.g. "7" or "8"), pass the pasta dough through the rollers three times.
Finally, either hand cut your pasta into strips for pappardelle or pass the pasta dough through the respective roller for your desired pasta (e.g. linguini or fettuccine).
Lay the cut pasta on a cookie sheet, covered with parchment paper. Cover with a damp cloth.
Repeat for the remaining quarters of dough.