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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