After much deliberation i have finaly come to the conclusion that i should be building a router first that will take up to 8 x4 sheets an then have a pen attachment, so am willing to increase my budget accordingly , i have a simple vid for you guys to giggle at , tell me your thoughts! im thinking of running the belting round the entire H frame and am looking for suggestions to how to fix the H frame to while allowing x y movement. http://youtu.be/6QkyB0GB6Ok