At 21:31 +0000 3/2/09, John Delacour wrote: >...if the strike height is, say, 200mm at note 40 (strings >horizontal) and the design requires the head to be at 90 degrees to >the shank (not by any means the rule), then for a hammer centre >height of 150mm, the bore length is 50mm if you make no allowance >for wear. If the strike height is 196 at note 85/88, then the bore >length must be 47... I meant 46, of course --> 50 - (200-196)
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