Check out this very nice free model. 13 pages plus detailed build pics. Translated version of http://www.stefan-schueler.de/beitraege/download.html Click on "Bastelbogen" then download the files "Arc-1-13" as well as the build pics and instructions Have fun, Oh, by the way, I got half way and decided it was too big. I am working on re-scaling it.to 50% and 6 pages. Saves paper, ink and space. Pointer to newbees: I used Internet Explorer, right clicked on "page info" then "translate this page" to get it in English.