[pianotech] Damper tray block

[David Love]

It seems like the digging of the corner of the underlever could be
alleviated by simply rounding the bottom front of the UL in a wider radius.
Although that would put slightly more surface area contact  on the key end
felt the less sharp edge  might keep it from digging.   

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Ron Nossaman
Sent: Saturday, September 29, 2012 11:16 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Damper tray block

On 9/29/2012 12:40 PM, Mike Spalding wrote:
> Do I detect a bias in the wording of your question?

Nope, and it wasn't a question. <G> It just seems to me that a group that
would sit in silence as someone seriously suggests that a unison that is out
of level will adversely (even perceptibly) affect letoff on shift needs some
consciousness recalibration, and this strikes me as a valid practical point
that has never been addressed on list or anywhere else I'm aware of. Level
under levers at rest present minimum friction, and at the bottom of the key
stroke, they rock up on the key end and change the lift ratio presenting
more resistance. Is that a good thing, or a bad thing, and why? THAT, is
definitely a question.

Ron N



> On 9/29/2012 11:44 AM, Ron Nossaman wrote:
>> On 9/29/2012 11:19 AM, Jon Page wrote:
>>> Having the underlevers (u/l) parallel at rest would still add 
>>> sliding friction only it would also be crushing the corner of the 
>>> felt when lifted.
>>
>> I don't suppose it would hurt to decide whether you wanted the least 
>> friction at the beginning of the stroke when you need to get things 
>> moving, or at the end where you are already moving and need to get 
>> things to stop.
>> Ron N
>>
>
>