key sticks

[Kent Swafford]

Thanks very much. I guess drilling for the balance rail pins in the  
wrong place could also cause the same symptom, but the placement of  
balance rail pins is not meaningless. I just thought someone might  
have some knowledge of production procedures that might give a clue  
as to what happened.

Kent


On May 28, 2005, at 9:45 PM, David Love wrote:

> Don't know for sure but I think they probably just drilled for the  
> front
> rail pins in the wrong place.  Afterall, the location of the pins is
> meaningless except that it centers under the mortise.  Another good
> plate indexing job too that got the capstan back far enough that they
> needed seven keyleads at F1.
>
> David Love
> davidlovepianos@comcast.net
>
> -----Original Message-----
> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
> Behalf Of Kent Swafford
> Sent: Saturday, May 28, 2005 5:46 PM
> To: Submit technical files to ptg.org
> Subject: key sticks
>
> I'm sending along 2 pictures of the F1 keystick, B 342631. Note the 7
> original key leads, and the non-original leather key bushings. But
> why I'm writing is the interesting location of the wear in the key
> bushing from contact with the front rail pin. The whole set of keys
> is similar, and under certain circumstances the front rail pins do
> indeed bind on the front of the mortise. (This explains a few things!)
>
> Any ideas out there with regard to what happened? It looks like the
> mortise is in the wrong place by just over 1/16". Anything else to
> watch out for? I know, I know -- watch for  _everything_. But it
> probably is just the mortise in the wrong place, right?
>
>
> Kent
>
>
>
> Photos at:
>
> http://tinyurl.com/cyygq
>
> http://tinyurl.com/ao697
>
> Direct ptg.org URLs:
>
> https://www.moypiano.com/ptg/files/attachments/01/b9/bc/70/ 
> DSCN1071.jpg
>
> https://www.moypiano.com/ptg/files/attachments/fa/4b/57/a0/ 
> DSCN1075.jpg
>
>
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