I'm not sure how it happened. I wound bobbin, and that looked decent. Installed in shuttle. Threaded the bobbin and tested the tension. Felt like it was the same as it had been the first time. Installed shuttle, threaded upper thread and needle making sure that upper tension was about the same as first time. Drew up the bobbin thread, took tool and drew both threads to back under presser foot. I thought I held the ends, lowered presser foot and took a few stitches by turning the hand wheel. Started treadling and the back plate popped off. The shuttle was out of place and a small piece of metal was in the track.
Dunno - I feel like I had done everything the same way. I was sewing on a different piece of fabric (than shown above), but it was on the same piece that I was sewing on when the pink bobbin thread ran out. I hadn't changed needles or anything else. Same type of thread, different color.
So absolutely frustrating.
Janey - Neat people never make the exciting discoveries I do.
Last edited by OurWorkbench; 03-13-2016 at 05:42 PM.