Accurate 1/4" Seams are an Essential Secret of Successful Piecing with the Janome Scan 1/4 Inch Quilting Seam Foot. Do your quilt blocks keep turning out too small? Do the points of your stars or setting triangles get chopped off at the tips? Do the seams on your quilt tops not line up with each other? The newly developed Janome Scan 1/4 Inch Quilting Seam Foot.is the answer. The Janome Scan 1/4 Inch Quilting Seam Foot. has the indention in the foot to allow you to move your needle over to the right to achieve a scant 1/4 inch seam.