Put all of your ingredients into your food processor.
Process at a low to medium speed until it all starts to come together.
You are looking for the consistency of large crumbs. If it all comes together into a sticky ball, you will need to add more flour. (To better understand what I mean, watch the video.)
If it's not coming together at all, and you only have tiny crumbs that don't stick together, you will need to add some liquid. You can add a small amount of water, and try to mix it up some more.
Once you have achieved the right consistency, use your hands to form it into a ball. Knead it for a minute or so, and divide it into smaller balls of dough.
Beginning with one of the balls, flatten it out as best you can, and put it through the pasta machine at its widest setting. (On my machine, that is a 9.) I like to pull it through twice, for good measure. If it falls apart, fold the dough over on itself and put it through the machine a few more times. That will help the dough become more elastic.
Narrow the rollers of the pasta machine by one setting, and pull it through. Narrow it again, and put it through once more. You will continue that process until you get the thickness you want.
Set that dough aside to dry slightly while working on the rest of the dough.
If you have an attachment, like one for making spaghetti and fettucini, you can very quickly and easily pull your dough through that, and you are finished! If not, you can use it as is, for making lasagna, fill it and cut it into ravioli, or even cut it by hand into fettucini; a pizza cutter works well for that.