To me a sketch is a quick capture of an idea. Not the project itself, but in cartooning, is often overlaid and inked for a finished drawing. Sketchup is about the only thing I see that could be related to cnc machines. Is what it produces called a sketch? I don't know. Don't use it.
Now recipe that is cnc related has to do with formulas for cutting. I have heard the term "cut recipe."
Then there is the CNC cookbook.
I built a router with a moving gantry that I sometime referred to as a bridge style gantry. It more resembled an overhead crane. Moving gantry. The Z axis was set between two outer rails or tracks. I didn't call it such to be something new, but to differentiate it and the typical over under rail arrangement with the Z axis hung off the side.