At last !
Why takes the first assembly of a new design soooo much time ?
OK, i know : 5 to 10 bugs !
some cutting, gluing, drilling later… here it comes 
http://www.youtube.com/attribution_link?a=IHfdPR8YT6I&u=/watch?v%3DzyXo8Wm9h-E%26feature%3Dshare