I don't mean converting the CraveWright machine to 3D printer. I meant building a 3D printer that a belt that moves the work piece back and forth in one axis much like the PrintrBelt but have the extruders mounted the same way as any other 3D printers. I wanted to build a new 3D printer that has a build volume of 24 inches by 12 inches by 12 inches but I don't know how to do this.