Aftertouch

[Thomas Cole]

Jon,

When you say spongy, I'm led to think that the front rail punchings are 
what you're talking about. Try a set of Wurzen felt punchings 
(http://www.pianofortesupply.com/) and see if that helps.

Key dip is typically 10 mm, a bit more than 3/8". Aftertouch might be a 
little less than 1/8" (of key dip); check for the jacks clearing the 
knuckles by a 1/32".

Tom Cole

J W Stein wrote:

> Hi Folks,
>  
>  
> Here is a question regarding regulation of aftertouch when depressing 
> keys.  When regulation actions, I like to break key movement into 
> eighths.  I figure that most normal key depths are 3/8 inches.  Thus, 
> the first 2/8 of movement is smooth..then there is that last 1/8 if 
> aftertouch.  I like to feel the slight hesistion (clicking feel).  
> However, there are times when that aftertouch feels too spongy 
> regardless of what I do....jack regulations, drop, let off, etc....   
> About the only thing that seems to help is a slight increase of 
> depth....but why would most keys have the "normal" feel of aftertouch, 
> while a few are unresponsive...?????
>  
>  
> Any ideas?
>  
> Jon
>  

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