If your machine is level with the surface around it, it does work. I quilt my lap size or baby quilts this way. I still start in the middle and worked across left to right on one section across the quilt. I then unrolled a little more and go across again and again until 1 half done. I then repeated the process for the other half. It does make it easier because the roll goes through the harp instead of having to be by the machine. Go For It!