The heart of this Marionette example is the RectPack node. A node with over 2600 lines of code!  It supports dozens of packing algorithm to pack rectangles on another rectangular area in a space and time-saving way.  The right combination of packing and bin algo gives the ability to pack rectangles in a way you want to have them on your machines (as close as possible, always cut complete board, less cuts etc.)   Actually not even myself know, which packing algo ist right for