If I'm understanding you correctly, I believe there's an adaptor that you can get to attach the foot to your shank. I take my Featherweights to my dealer to have them help me with feet. They've been working on Featherweights for 70 years and do fit my Featherweight with Janome 1/4 inch feet for quilting. I've never had a problem with this at all. But, as I said, I do go to my dealer for assistance with this, rather than doing it on my own.