During embroidery application, stitches "pull the fabric in", with the direction of the
stitching. Also, in the case of an area of fill, the stitching "pushes out at a right
angle to the line of stitching". Understanding this embroidery phenomenon is important
because it explains why design detail lines may appear to be off when viewing a design
on screen, and yet the design will stitch fine upon application to fabric. During
digitizing, compensation is made considering for the "push and pull" effect and the
stitches are set accordingly. Fill size and density affect how much "push and pull"
compensation to use. It is always best to run a test sewout on fabric with backing
before deciding that the stitching is off.
* 1: Stitching ending inside detail line compensating for 'push' effect. During
stitching, the fill stitches will "push out" at a right angle to the direction of the stitching.
* 2: Apple Fill Stitch Direction: Stitching extending outside detail line
compensating for 'pull' effect. During stitching, the fill stitches will "pull in" with the
direction of the stitching.