I have made several sign projects with various techniques. Raised letters, Vcarve, relief objects, etc.... All of my projects use a base raster layer. I don't understand where the canvas fits in. I know it defines your work space, but so does my base raster layer. The only thing as far as I see is if your project does not need to be cut out,then the canvas layer is the only thing needed. Is the canvas layer redundant or am I missing the purpose and aimlessly wondering off ?