Thread Delivery System Eduction
I always forget on where to place the spool of thread based on how the thread is wound. Should the spool be horizontal or vertical? Dr. Bob covers that topic in a short video.
Bob Purcell (Chief Threadologist of Superior Threads) discusses the winding patterns on a spool and a cone of thread. If a spool is straight wound (parallel wound), it is meant to come off straight from the side. If a cone of thread is cross wound, it is make to come off over the top of the cone.