[pianotech] capstain/wippen angle, was: key position at rest

[Mike Spalding]

Yes, exactly.  No matter how you shape or angle the capstain, it has to 
slide.

Mike

Ron Nossaman wrote:
>
> It strikes me that a good starting place is basic geometry, with the 
> changing total distance from wippen center to balance rail hole via 
> capstan contact point. If you start with the contact point below the 
> magic line and end up with it above, that total distance changed from 
> longer to shorter, to longer. If you set the contact point at the 
> magic line at either the top or the bottom of the keystroke, the 
> length change is one way. With the magic line centered in the stroke, 
> how it it possible to maintain non sliding contact with the direction 
> reversal? With the contact point not passing *through* the magic line, 
> it very likely is.
> Ron N
>
>