I have a Tin Lizzy also and you can use a laser and follow the design and you can use these boards that have a grove in them and follow the pattern. (I think it is error proof way to go, when you are just starting, I know I was nervous about do my first quilt on Tin lizzy. I went with the laser for my first one. I just finish my first quilt on my Tin Lizzy would not recomend do a big quilt for your first. I had lots of frustration :(120x120)