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Construction - f-holes
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The simple hold-down jig shown in this picture and the next works well to stabilize the top while cutting and shaping the f-holes, lessening concern over damaging the fragile spruce.

I’m not sure how or when the old deep-throated jeweler’s saw came into my life. It works well for this procedure, and for cutting truss rod openings in peghead overlays.

The backside of the jig.

 

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Leaving the f-holes at 85-90% of what the final openings may be, allows for additional shaping and adjustment once the instrument is strung up in the white and the overall sound and appearance are evaluated.