OK so hmmmm... I should have been more clear - the spool of thread stays outside the machine. I have a small extension that fits on the machine so in essense you lift the little door up, then there is a small area and you open the bobbin case door. So the idea like Neesie said would be to feed the thread from the spool into the bobbin case, perhaps keeping the bobbin itself in the case and wrapping the thread around the bobbin a few times. So instead of the bobbin thread just feeding the machine with the wound thread, it would actually pull the thread from the spool. I wonder if its worth asking BabyLok?