hey guys. hoeken from RepRap here. i was just going to post about our gcode work and i found this. i've created a new thread here that talks about the system itself: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1204066265
basically, if you're building an engraving system which uses cnc style stuff, this is an extremely nice route to go down.