Originally Posted by PaperPrincess
Is the bobbin going the right way in the bobbin case?
Is the bobbin case inserted correctly in the machine?
Is the bobbin case all the way in?
Double check that there are no threads or lint in the bobbin area.
Finally, are you using the correct needle, is it inserted all the way, facing the right direction and threaded the right way?
I would add - is you frame adjusted correctly(ie is the quilt flat on the bed of the machine?) and is you pressure foot down?? (ask me why I ask that question. . . lol)