It would have an effect on action mechanics..but Phils question is to define a relationship or formula between changing key height, and the resultant key dip. Dan On May 11, 2008, at 12:34 PM, David Ilvedson wrote: > But if the key is raised the capstan will move back slightly and that > would have some effect on action mechanics...? > > David Ilvedson, RPT > Pacifica, CA 94044 > > ----- Original message ---------------------------------------- > From: "Jon Page" <jonpage at comcast.net> > To: pianotech at ptg.org > Received: 5/11/2008 9:44:36 AM > Subject: Ratio question > > >>> Is there a ratio that can be looked upon as a standard with >>> the following scenario: >>> If you increase the key height by ... , you will increase >>> dip by ... . Something tells me it's not a 1:1 ratio. > >> Where'd you get that something?... > >> If you raise the key height 1mm, the dip will increase the same >> amount; 1:1. > >> The only ratio aspect which is different and non-applicable is that >> the key height increases a smaller percentage than the dip: >> 62 mm key height increased to 63 mm is a .016% increase >> 10 mm dip increased to 11 mm is a 10% increase. >> But has no bearing on anything. >> -- > >> Regards, > >> Jon Page >
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