By definition, an infinity scarf or Mobius scarf has no beginning and no end. The challenge to knit one on a knitting machine is to create a reversible fabric.
For single bed machines that means turning your work or reforming stitches.
This quick project creates a scarf that's not only reversible, but it has no stockinette curl.
Brush up or learn the skills needed to create reversible fabric and try an invisible seam worked on the knitting machine
Neatly joining pieces by grafting (or Kitchener stitch) is essential for all knitters. Doing it on the machine utilizes the needles to help make the perfect join. This tutorial demonstrates grafting from the PURL side.