Fretboard Radiusing Jig

grabcad

A jig for radiusing a guitar fretboard comprising a slide frame, router cradle and radius guides. The two radius guides (one for producing a 9.5" neck radius and the other for 12") are interchangeable on the jig.The router cradle is designed to accommodate a range of routers.An indexing system is incorporated into the design to speed up the radiusing process, although this could be omitted to simplify the build of the jig.I have built this jig and carried out many trials to produce radiused fretboards from blanks. These trials have resulted in modifications which I have incorporated into the design. The jig, as represented here by the CAD model and accompanying drawings, has therefore been proven to work and produce consistently accurate fretboards.Some components of the jig are designed around parts and materials that I had available at the time and some parts have been taken from existing equipment and re-purposed for the design. The remaining components are made from stock items. All of the manufactured parts can be fabricated by hand, with the exception of the plastic components of the angle index plate and the bearing sleeve, which need to be 3D printed (see STL files). However, these are not necessary if the indexing system is omitted. (In this case, the bearing sleeve can be replaced by rubber tubing of comparable dimensions.)I have uploaded engineering drawings to aid in the manufacture of the jig.The video link shows an animation of the operating sequence for routing a radius on the fretboard blank.