Edge Joining Foot
 
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Guides topstitching, guides trims that are sewn to an edge or when two trims are sewn together.

Edge/Stitch:
Machine Settings
Straight Stitch, left needle position, length 2-4.

Procedure
1. Place edge of fabric against flange/guide.
2. Sew

Topstitch:

Machine Settings
Straight stitch, center needle position, length 2-4.

Procedure
1. Place flange/guide at line to topstitch. 
2. Sew

Join/Stitch:
 
Machine Settings
3 step zigzag, or bridging stitch, length 2-3, width 4-6.

Procedure

1.  Place two pieces of fabric or trim on each side of guide/flange of the foot.
2.  Sew.  Keep fabric/trim against the flange/guide to join them.
 
This foot has multiple uses. Stitch in the ditch, top stitching, for sewing on trims, and excellent at joining lace.