[pianotech] Damper tray block

[David Love]

Personally, I like damper underlevers with spoons and that seems to solve
these problems.  Makes tweaking the adjustment easy as well.  

Whether setting the underlever level is good or bad I'm not sure.  That
would be setting it pretty high unless you lowered the tray which can create
problems with the dags and the bottom of the tray.  I don't particularly
like to lower the tray for that reason.  If the UL is at too steep an angle
why not simply put on thicker key end felt.  

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 12:35 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Damper tray block

On 9/29/2012 2:20 PM, David Love wrote:
> 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.

But if it was level at rest, the front edge of the UL wouldn't dig in under
any conditions. It would ride the back edge of the key end felt during the
stroke unless the underside was radiused (or otherwise convex
curved) on the end. I don't know of anything set up that way, although it
ought to be doable with spoons. Would that be a good thing, or a bad thing?
Ron N