Posted on January 19, 2010September 9, 2025 by Dale Phillips Lute Rib Clamp Lute Rib Clamp by Leo Anway Originally published in Guild of American Luthiers Data Sheet #118, 1979 and Lutherie Tools, 1990 This is a simple device for holding each individual rib in place on the form in order to glue it. The diagrams illustrate how it works. ◆ Top view of plywood board (slightly smaller than lute outline)