When starting a project for a CNC router, the design may seem daunting at first. It is not obvious that most CNC projects are simple in their design. It often isn’t necessary, for instance, to have a 3D model of the project. This is because many of the operations a CNC router performs need only two dimensional paths. Take 3D lettering or engraving as an example. Although the object is three-dimensional, the paths required to make it are simple and only two dimensional.