More dip in bass

[Keith Roberts]

Good point. I also wonder how many times a key needs to be played before the
felt is considered to have achieved compaction. Just from the weight and
vibration the balance rail felts seem as they would compact slowly.
What is the effect of age and climate on the felt's hardness or resiliency?
Keith R

> Since felt compression also takes place on the balance rail punching,
> lowering the key height in the center proportionately more than on the
ends
> and thus reducing the dip, I don't think that makes much sense.
>
> David Love
>
>
> ----- Original Message -----
> From: "Matt Wynne" <ptuner@optonline.net>
> To: <pianotech@ptg.org>
> Sent: August 18, 2002 8:55 AM
> Subject: Re: More dip in bass
>
>
> One of the local techs here in long island, during a presentation
detailing
> his key height/key dip setting procedure, said he likes to set the dip on
> the piano in something of a bell a curve, being slightly deeper at the
ends
> and slightly shallower in the middle.  This, he said, was to compensate
for
> the gradual felt compression which will occur during playing, since the
> middle gets more wear than the ends.
>
> Just another idea for the mix.
>
> -Matt
>
>
>
>