Cracked Lid

[gordon stelter]

Might be Ash. Looks a lot like Oak, but is more
uniform. I've usually seen ash in piano construction.
     Thump


--- "Paul Chick (Earthlink)" <tune4@earthlink.net>
wrote:

> 
>   Subject: Re: Cracked Lid
> 
> 
>   In a message dated 10/28/2004 4:47:40 AM Pacific
> Standard Time,
> pianoman@accessus.net writes:
>      Jim
>    I'm currently working o 20s D lid that has one
> hairline crack along a
> tongue & groove joint on the tail. This lid is very
> wash boardy & we've
> sanded it cross grain a fair bit to level it out.
> I'll repair the crack. As
> far as stress on long panels I don't agree, as most
> have multiple cross
> braces & also the lids of concert grand's & other
> with longer lids are more
> likely to be closed than open. Know what I mean?
>     Also a hairline crack though not visible
> initially will show up right
> thru the finish, usually about the time you want to
> deliver it.
>    Dale Erwin
>     On long grands where the lid has been kept
> mostly in the up position you
> can
>     imagine the stress, over the years it put on the
> glue joints on the long
>     core panels glued together for the lid with only
> support on one end and
> the
>     other just kind of hanging out there.  It is a
> wonder that we do not
> seem
>     more of this in anything over 6'.  I do not know
> if they used any
> special
>     types of joint between the boards or if they
> were all just edge glued.
> Any
>     one tore one apart to see.?
>     Jim
>   Dale
> 
>   Good thoughts.
>   I think the problem with this particular lid (the
> Steinway I've mentioned)
> is the lack of cross banding.  I' ve seen this
> omition before when I did a
> lot of furniture repair in another life.  Also, the
> oak core tends to move
> more, ends being the worst.
> 
>   Paul C
> 



		
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