If you have sewn for a long time, you probably remember the novelty of thread being sold on cones for the first time. Years ago, if you were a home sewer and were not involved a sewing business, you simply had never seen thread sold on a large cone. Since small thread spools were the only way thread was sold back then, if you owned a sewing machine, your only option for top thread delivery was an upright post. Now, of course, threads are sold in a large variety of spool and cone sizes and shapes so the newer machines reflect the flexibility needed to produce excellent stitches. If you, for instance, start experiencing top thread delivery problems while using your machine, you may want to change how your thread is moving up to and through the machine. If your thread is leaving the spool in big loops, you may have the thread positioned in the wrong way for the thread to unwind smoothly. If your thread is breaking frequently and you have already changed the needle, the thread may be leaving the spool with too much tension causing it to leave the spool in fits and starts. Take a look at the following pictures and, if you have experienced any of these issues lately, see how you may avoid these annoyances in the future.
I hope you find these examples helpful! Happy Sewing!