Originally Posted by
PaperPrincess
Wind two bobbins. Put one on the top and the other in the bobbin. The machine should use thread from top and bottom at about the same rate. You can keep an eye on the one on the top. This is only going to work if you use the same thread in the top & bobbin!
Do you actually do this. I hope you realize that running out of spool thread is much worse than running out of bobbin thread. I seldom sew past the second patch on chain stitching before I realize I am sewing air; there is no more bobbin thread.
But the spool is thread is the one you need to watch. When that runs out, you have a tangled mess. Sometimes it takes minutes to get rid of that knot. I try to keep an eye on the spool when I know it is close to the end. If I can see the spool core through the thread, it's time to put on a new spool and wind this end of spool thread onto a bobbin. When bobbins run out, they just run out. I just deal with it.