At 6:19 pm +1000 1/8/07, anthony wrote: > l'm about to fit a new set of hammers to an old wilcox and >white angelus upright piano which has had the old hammers removed >and also new tuning pins and strings installed. > >my question is related to the striking point,is there a rule of >thumb that is accurate enough for this? >can you use a ratio of the speaking lenght at several positions and >draw a line betwen them? Go down 1/8 of the speaking length on note 1 and 1/16 of the speaking length on the top note and you'll probably find the line joining them (the strike line) is horizontal. If not, get a piece of card, rest it on the action beam at the top note and mark it 3mm below the top bridge. Transfer this mark to the bottom string and join the two points. Note that some pianos raise the hammers above the line a little towards the tenor break to make room for longer dampers. JD
This PTG archive page provided courtesy of Moy Piano Service, LLC