Tip: Using a kitchen scale ensures you have the perfect amounts of water and flour for the dough.
Place the flour in a medium bowl. In a separate bowl or cup, stir together the water and salt until the salt dissolves. Slowly add the salt water to the flour while mixing with your hands.
The dough will be very dry, stiff, and difficult to knead. This is normal. Rather than trying to knead it like bread dough, squeeze the mixture firmly in your hands, turning and squeezing repeatedly until most all the dry flour and loose pieces have been incorporated into a rough dough.
Cover the dough with a bowl or a clean, damp kitchen towel and let it rest for 1 hour. This rest helps hydrate the flour and makes the very stiff dough easier to work with.
A pasta machine is necessary for the next step. After resting, divide the dough into 2 pieces; it's much easier to work in segments than to feed one long strip through the machine. Squeeze and flatten each piece firmly with a rolling pin until it's narrow and thin enough to fit through setting 0 of your pasta machine.
I like to fold the dough to help develop it and pass through the thrid setting then vold and pass through thte zero setting
Keep the dough covered with a damp towel when you are not actively working with it.
Pass each piece through the machine a few times until it becomes smoother. Once each segment is smooth, overlap the ends slightly and press them together to join them into one long sheet.
After the dough has smoothed out, fold it up and wrap it tightly with plastic wrap. Place the wrapped dough in a plastic bag, remove as much air as possible, and seal.
Refrigerate for 1 to 2 hours or overnight before continuing with the rolling and shaping process.