This foot is designed to allow the placement of stitching close to a raised edge: zipper insertion, corded seams, tubular cording, slipcover welting and similar applications. Basically, the zipper foot prevents you from sewing into the zipper teeth.
If your sewing machine won’t let you change needle positions, the Madam Sew Adjustable zipper foot is for you. It has a slider on the back that allows you to change the foot’s position. Loosen the screw to adjust the slider and position of the foot in relation to the needle. Align the foot with the zipper. Don’t forget to re-tighten the screw once you’ve adjusted the foot’s position.
The foot is attached to the presser foot bar by removing the existing presser foot and shank and attaching the zipper foot, which has its own shank. This foot can look rather confusing before it is attached to your sewing machine. Remember the large flat foot, which faces you in the packaging needs to go flat down on the feed dogs of your sewing machine. It should all make sense for attaching it at this point.
A really simple way to use the foot is to treat your zipper as if it was any other fabric by placing it and the fabric right sides together, then sew the seam.
Turn and press.
If you are not making clothing where you don’t want it to show, then edgestitch it like the pros do.
It takes only seconds, literally. No tape, no pins; just you, the zipper, your fabric and sewing machine.
A more traditional technique is shown in the video below.