Deriving inspiration from a youtube video, I put together a jig for applying a compound radius to my fretboard blanks. I found a video that uses a similar technique for roughing out the back of a guitar neck. Thinking about it I couldn’t see why one couldn’t specify different radii for each end of a fretboard. I ordered a planing cutterhead for the shaper on the Minimax and made the jig shown here:
- I can set the radius for each end independently by inserting the pivot bolt in different holes.
- here are some examples- in red heart wood, kingwood, pink ivory, bocote, kingwood, spalted maple
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