warped keys

[Carl Teplitski]

Hi  ...  J&P.  Didn't think of scratching, but good point. What I was
wondering about was this. How does the plastic stay on when whole
key being twisted back, as a matter of fact, how does the plastic stay
on while key is warping originally. I'm guessing it bends along with the
wood, but being a harder material, I thought it should not bend. ? ? ?
How can you make a sheet of almost anything bend along it's wide side.
Now if the plastic was heated, it could bend, but then it might get loose.
Plastic probably would bend, .... would ivory ???    Dumb question ? ?
Getting an ache in the front of my head . Better stop, before I hurt myself.

Carl / Winnipeg.


Joe And Penny Goss wrote:

> Hi Carl,
> If you are concerned about scratching the key top while making the repair,
> you could cover the plastic with masking tape to protect the surface from
> scratches.
> I know you did not ask about this, I am just reading between the lines and
> seeing what might not be there<G>
> Joe Goss
> imatunr@srvinet.com
> www.mothergoosetools.com
> ----- Original Message -----
> From: "Carl Teplitski" <koko99@shaw.ca>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Sunday, January 12, 2003 9:45 AM
> Subject: Re: warped keys
>
> > This posting has been on my PC for a while because I wanted to
> > ask you a question. When you cut kerfs and bend back to straight,
> > must you first take top off, or is it possible to do with plastic or ivory
> > still on ? ? ?  Thanks,
> >
> > Carl / Winnipeg
> >
> > "Paul Chick (EarthLink)" wrote:
> >
> > > Subject: Re: warped keys
> > >
> > > >
> > > > >You could try diagonal saw kerfs filled with a thicker veneer to
> "bend"
> > > it
> > > > >the way you want it to go. I've done this before and made it "less
> bad".
> > > > >
> > > > >Greg Newell
> > > >
> > > > I did one like this a couple of weeks ago. The (natural) key was both
> > > > severely twisted, and warped. Took three cuts. Two shimmed out, one
> > > clamped
> > > > in. Back in the piano, you can't tell which one it is. I've tried
> heating,
> > > > but never had much luck with it unless the twist was very slight.
> > > >
> > > > Ron N
> > >
> > > Ron
> > > I was taught to straighten keys this way.  Work from the bottom of the
> key
> > > to cut the appropriate kerf(s), shim with veneer if required and apply
> > > epoxy.  Some finesse with shaping, spacing, and levelling and the repair
> is
> > > virtually invisible.
> > >
> > > Paul Chick
> > >
> > > _______________________________________________
> > > pianotech list info: https://www.moypiano.com/resources/#archives
> >
> > _______________________________________________
> > pianotech list info: https://www.moypiano.com/resources/#archives
>
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives