Hello
was merrily sewing away last night, machine behaving perfectly and today it has turned into a thread chewing monster.
I did switch needles to a denim needle but have switched back to the old one with no improvements, have also tried re-threading the bobbin but still the same, here's what happens:
When I start sewing it looks at though all is well, it will do a couple of cms of normal stitches then the bottom and top threads just lose their connection and I get one proper stitch every 5cms or so. fabric (denim) not bunching or catching and needle going up and down OK I just can't see what's going wrong. have fannied about with the tension too but that doesn't seem to do much.
Any advice will avert an injured sewing machine!
many thanks