The Finishing Process

Computer-guided contour saws are used when a design requires graceful curves or an intricate shape. Diamond-wire, a flexible cable with metal segments to which industrial-grade diamond is bonded, forms a continuous loop. The saw is similar in appearance and function to a woodworker’s band saw, but the wire travels horizontally between two guide wheels rather than vertically. A complex profile or a silhouette, such as that of a cross, is programmed into the saw’s computer, enabling the saw to track the outline.

Although the contour saw is capable of cutting intricate shapes, it cannot cut a column. The gracefully proportioned columns that adorn many of Rock of Ages’ mausoleums are cut on a stone lathe. The column begins as a rectangular block of granite. A small circular blade encrusted with diamond dust performs “plunge” cuts, i.e., a series of shallow cuts are made side by side along the corners the length of the block. Knocking off these thin pieces results in a “rough round,” the corners of the block having been removed. Another diamond blade is used to finish the rounding process.