I am just getting into making fresh pasta and have noticed that pasta machine manufacturers make a special attachment for lasagna noodles. Can't lasagna noodles be made from regular sheets of pasta without a special attachment?
Additionally, The Frankies Spuntino Kitchen Companion and Cooking Manual (which I highly recommend) lists lasagna among the pastas to buy (rather than to make at home). This supports the assertion mentioned above, but the book offers no explanation.
What is the difference between lasagna noodles (and their sliced-up cousin, pappardelle) and regular sheets of pasta out of the machine that have been cut into rectangular shapes?