Singer 15-91 all of a sudden sewing badly
My singer 15-91 was a dream. The most perfect straight stitch ever. We used it to sew 100 masks for donation and now all of a sudden it’s not sewing well and the straight stitch looks a mess. I just wanna cry. I bought her about a month ago to make masks. We’ve not changed or messed with anything. She’s just not sewing well anymore. We changed the needle and played around with the tension and can’t get it right. Any suggestions at all?? Using high quality thread. Nothing changed. It just started to sew badly. She is newly rewired as well, just an FYI.
thanks in advance!