I have a Thompson walking foot machine. How do I change it to the zipper foot?
If it is a walking foot machine, you are pretty much limited to using the walking foot. That doesn't mean you can't sew on a zipper with the walking foot, you'd just have to accommodate using the walking foot (ie if one side of the foot is narrower, place the zipper teeth on that side. It may not sew right up close to the zipper, but should still be useful). Unless there is a specific zipper foot made for your machine, it's not likely you will find one that will work.
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