Here is a video of thread being removed from the upper tension of a Bernina sewing machine. As you see in this video notice that it doe not take much thread to create issues with your sewing. Also notice that a machine needs to be taken down to the frame in most cases...

     Sewing Machine tension is the most important element in sewing to achieve a good experience while making your project.  A sewing machine has two tension that must be balanced. There is a upper tenion, that you can adjust at will, and a lower tension located o...

Often times thread can find its way into your machine in the strangest places. The hand-wheel is close to the spool pin. If you have two spool pins, chances are you may leave an extra spool of thread on it. If a tail from the spool slips into your machine it can suck a...

Here is a simple video on "How to check your thread tension." There are two tension on every sewing machine. One on top, that you can adjust as you sew and one on the bobbin case.  Most often you will make your adjustment from the top to correct any issue. The top tens...