I have that exact setup, and I am very happy with it. The paper pantograph pattern goes on top of the shelf, and a laser light goes in the holder that extends over the shelf. It should be directly over the front of your sewing machine, and you just follow the printed pattern with the laser light. It's very simple. The people on that Yahoo group are also very helpful. I have made several of my own pantograph patterns by copying simple patterns on the internet, then printing them out on a single sheet of paper, and then make enough copies on a copier and tape them together to form a long strip. Works great!!