This video teaches my students in my Fashion Design and Construction class how to wind a bobbin and thread our sewing machines in class. The machines are the Brother SB700T. Great machines so far, love them! Should you have any problems with the machine binding up, 9 out of 10 times it is because something is threaded incorrectly. Look at the diagrams provided, at the poster in the room, and of course at the video for guidance!