Yes, you need a special foot. There is one for high shank machines and one for low shank. The low shank machines and foot have to have thinner rulers. The regular ones won't fit. Ruler work can be done on a long arm (with a special attachment table that goes on the machine bed) or a sit-down or domestic machine. The rulers are sold everywhere. I bought some with my Juki, and I know the other dealers make their own too. You could also check places like MSQC and/or Nancy's Notions. Watch some YouTube videos on ruler quilting first and you'll be ready.