A concave canopy can be sawn on an ordinary circular saw. It is enough to rotate a round flat object around the w axis. the cut guide, and the saw blade will cut the bowl. We start cutting with a slight protrusion of the saw blade above the surface of the table and gradually move it higher and higher. You need to be especially careful when doing this work, because it may injure your hands. We rotate the turned workpiece very slowly around the vertical axis.
