On Mon, Apr 19, 2010 at 10:54 AM, John Delacour <JD at pianomaker.co.uk> wrote: > One a few of the keys I have made a 3mm deep saw kerf at the font of the > hole and inlaid a strip of rosewood. I fixed a whole set of pulley keys on a Hallet & Davis with a similar technique. Seemed to go pretty quickly by the time I had a rhythm after a dozen or so keys: Bound three hacksaw blades together, with a bit of space between them; clamp the key so the hole faced up; cut the groove, overlapping the oval by some amount; ripped some maple strips to a width that wedged into the groove; cut them to key-width pieces; cut the groove, glue and tap in a piece, then go to the next. When all done, sand the excess; ease holes onto balance rail pins. What makes it work is when determining how much to overlap the hole with the groove, I used a brass pin to wiggle in the hole next to my blade and "feel" for how much to overlap the hole with the groove. Turned out nice. Jim
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