There's a proper and improper way to line a baseball field. Learn how to prepare the ball field the correctly in this video. After the field has been mowed and leveled, you can place the bases and begin to line the field. You'll learn that the proper way to line each baseline is to take a cord reel with a stake attached. Place the stake down on your starting base or home plate, and pull the cord to your ending point. This way you can make sure your line is correct before you begin lining. Once the cord is in place, move over it with your lining machine. The end result is a perfectly lined field that any player would be proud to step onto.