Warped keys

[Christopher D. Purdy]

The keys are tilted, big time.  If I just sanded to cure the rubbing I
would still have the capstans pointing at 11:00 and the keytops at 1:00.
The good news is that this piano is here in the school of music so I don't
have to worry about charging and guarantees.  I am going to try warping
first and if it doesn't take I will go nuclear.

Thanks to everyone who wrote.  I really enjoy being able to draw on so much
experience.

chris


>In case the key tops are tilted because of warping, dry heat and
>bending is the option.  The heat from an electric stove works pretty
>good.  Clamp to a strong  board.  It might take two operations, so
>charge accordingly, and it cannot be guaranteed.  If it warped once
>who can say, and is an uncommon job.   I don't think you need steam.
>Steam is for radical bends this is  a slight bend.  Kind of like
>burning in hammers. I have done one key with dry heat, and seemed to
>get the job done. I told them to call as soon as it rubbed again.
>Almost two years later they haven't.
>	But if the keytops are not tilted, by all means sand,grind, file, or
> plane.
>
>R Moody
>
>----------
>> From: Lance Lafargue <lafargue@iAmerica.net>
>> To: pianotech@ptg.org
>> Subject: Re: Warped keys
>> Date: Friday, February 06, 1998 2:45 PM
>>
>> I'm not sure that steaming/rewarping would be permanent.  I usually
>use a
>> small hand plane sander to remove wood.
>> New Orleans Chapter
>> Covington, LA.
>> lafargue@iamerica.net
>>
>> ----------
>> > From: Christopher D. Purdy <purdy@oak.cats.ohiou.edu>
>> > To: pianotech@ptg.org
>> > Subject: Warped keys
>> > Date: Saturday, February 07, 1998 12:31 AM
>> >
>> > Hello List,
>> >
>> > I have a piano in my care that has developed two severely warped
>keys,
>> > adjacent to each other and warping opposite directions. (go
>figure, kind
>> of
>> > reminds me of David Letterman's smile) My first response is to
>"un" warp
>> > them with dry heat  like we do hammer shanks.  I seem to
>remember,
>> though,
>> > someone teaching the use of steam in this case.  Your input would
>be
>> > appreciated.  Some of the students here are more annoyed than
>usual.
>> >
>> > Thanks,
>> >
>> > chris
>> >
>> > -Christopher D. Purdy R.P.T.   School of Music  Ohio University
>Athens
>> OH
>> >
>> > -purdy@oak.cats.ohiou.edu   (614) 593-1656    fax# (614) 593-1429
>> >
>> >


-Christopher D. Purdy R.P.T.   School of Music  Ohio University  Athens OH

-purdy@oak.cats.ohiou.edu   (614) 593-1656    fax# (614) 593-1429