I had a little time yesterday to fiddle with the Singer 20U Industrial Zigzag machine that I bought at an auction a while back. I’ve set it up to sew upholstery-type fabric and vinyl with Tex70 thread. I played around with it sewing vinyl cut-outs onto a piece of old upholstery fabric in an appliqué fashion. I really like the wide zigzag for that, especially when the stitch length is dialed down short. However, when I tested the straight stitch at its longest setting, I’m getting 9-10 stitches per inch at the longest, and it’s supposed to sew 5 SPI. Something must be out of whack in the feed system....
CD in Oklahoma