DIY The Lego Mindstorms NXT 3D Lego Printer

DIY The Lego Mindstorms NXT 3D Lego Printer: "Introducing the MakerLegoBot, a Lego Mindstorms NXT 3D Printer. Come see it live at LegoWorld October 22nd through October 26th, 2010 in Zwolle, The Netherlands, or build your own with detailed instructions!"