The Result

However you roll, you want to achieve an even, smooth sheet of pasta at the end. There should be no flour on the pasta, and if you work quickly it should be sticky enough to stick to itself, but not to anything else. You may therefore be able to close filled pastas without using egg or water as an adhesive, but will have to let the pasta dry to a leathery state before cutting into unfilled pasta shapes (which would otherwise stick together).