Question about Brother LS-1217 Mechanical Sewing Machine
For a comprehensive 5 page illustrated tutorial...Check this link
Posted on Oct 18, 2011
I discovered that when the thread is knotting up on the underside of the material that it is usually the threading on top and has nothing to do with the bobbin.
Posted on Oct 17, 2007
Tips for a great answer:
Usually answered in minutes!