There are 4 scenes in the video. 1. is from the quarry near Gramolazzo. The backhoe is working open a crack until it drops 20'x20'x6' slab of marble onto a cushion of earth and gravel. 2. is the rough cuts as the robot whittles down the block. 3. is the finer cut, which is still rough which carves a little closer to the surface of the model. Its a contour cut. 4. This is the final finish pass, note the size of the bit. At its tip its about 1/16" small.