Posted on July 7, 2024May 21, 2025 by Dale Phillips Nuts and Bolts for Bridge Gluing Nuts and Bolts for Bridge Gluing by Tim Olsen Originally published in Guild of American Luthiers Data Sheet #126, 1979 and Lutherie Woods and Steel String Guitars, 1998 The holes of a pin-style bridge provide a golden opportunity to apply some very convincing clamping pressure. I use 3 10×32 1" round-head bolts with washers, wing nuts, and pieces of drilled shoe sole leather to temporarily bolt the bridge on while gluing. This not only exerts a strong pressure to the back edge of the bridge, but the bolts ensure an accurate alignment of the bridge. All that remains is to set a deep-throated cam clamp on each end of the bridge. The leather washers will take up any slop that the bridge might have. This is a natural for repair work as well as construction. ◆
Posted on June 6, 2024May 9, 2025 by Dale Phillips Banjo Fifth Peg Press Banjo Fifth Peg Press by John M. Colombini Originally published as Guild of American Luthiers Data Sheet #207, 1982 and Lutherie Tools, 1990 Procedure: Make a bushing from a 3/4"×3/8" piece of steel or brass round by drilling a 7/32" hole and countersinking one end. Round off the bottom of a 4" C clamp screw so it seats in teh countersunk hole in the bushing centering the clamp. Cut a hardwood block 2"×1 5/8"×1 5/8" cutout to fit the banjo neck. I use a contour gauge or my actual size templet. Apply 1/16" piece of leather to the cutout using contact cement. The drawing should explain the usage. The important part is to be sure the bushing is longer than the shaft of the tuning peg. Add spacers between the bushing and the peg shaft if you should come across a longer shaft or make a slightly longer bushing. ◆
Posted on April 21, 2023May 29, 2025 by Dale Phillips Letter: Vacuum Clamp Letter: Vacuum Clamp by David Haxton Originally published in American Lutherie #67, 2001 GAL: I share Jon Calkin’s enthusiasm for the dished workboard (see AL#65). I know it’s made my guitars better. But he could trade all his clamps and dedicated workstations for a much simpler and, I would say better, solution: the use of a vacuum pump. You get absolutely even clamping pressure across the entire face of the plate and no dents from over-tightened clamps. In fact, I preshape and sand all my braces before gluing, lessening the need for chisel work after glue-up, and the whole procedure is quicker. I’ve also used my vacuum pump to make radiused sanding blocks for fretwork and laminated linings, and they make great hold-downs. My pump came from a mail-order surplus supply company for about $80.
