Originally Posted by Eileen
I have seen on some quilting show that someone used their serger with the knife down or so that it doesn't cut, to put decorative stitches on crazy quilts. I wish that I could remember the show. Maybe Kay Wood?
I think you flip the knife *up*, out of the way. At least on my serger. Hadn't thought to try decorative stitching with the knife up; will have to check that out!
Edit: I found this pdf. Aside from disengaging the knife, it looks like you need to fold the fabric along the line you want to stitch. Folded right sides together, then opened up, the stitch looks one way; folded wrong sides together and then opened up, it looks another way. Neat!