kedougou

I am starting to plan my first ever whole cloth quilt. I am having problems getting my pattern enlarged. I want to do a labyrinth design (see photo). But all I can do is print this photo on my home computer. how do I blow it up to a full sized pattern (twin quilt). I was thinking about taking it to a kinkos-type store. Any one have some brillant idea to get this picture from a 8x10 to a twin quilt without spending any $$?