jig for Twisted-Key keytops

[Mark Story]

No - we agree. The bottom is usually parallel with the top. That's why I use
the bottom as a guide rather than the side.

Mark Story, RPT
Eastern Washington University
Cheney, Washington

----- Original Message -----
From: "Farrell" <mfarrel2@tampabay.rr.com>
To: <pianotech@ptg.org>
Sent: Thursday, March 16, 2000 4:02 AM
Subject: Re: jig for Twisted-Key keytops


> Hmmmm, RU saying that the bottom of the key is not does not lie in a plane
> parallel to that of the keytop? Even if the key were twisted, the bottom
and
> top would still be parallel in any given area. Please explain, I must be
> missing something.
>
> Terry Farrell
> Piano Tuning & Service
> Tampa, Florida
> mfarrel2@tampabay.rr.com
>
> ----- Original Message -----
> From: "Paul McCloud" <smccloud@ix.netcom.com>
> To: <pianotech@ptg.org>
> Sent: Thursday, March 16, 2000 12:59 AM
> Subject: Re: jig for keytops
>
>
> > I have this planer also, and have used it with my own version of a key
> > jig.  The photo shows a very large radial press, which is much bigger
> > than our table top drill press.  I used a vise from Sears which has a
> > special handle to tighten the jaws.  I used this to hold the key while
> > planing the top.  I mounted a piece of flat ply on the press table, and
> > slide the key under the planer in the vise.
> >     My problem has been that the keys often have some twist in them, so
> > the bottom of the key isn't flat, and the top gets planed at an angle,
> > and the keyfronts lay at an angle.  YIKES!.  What I would like to see is
> > some way of using the original keytop to set the planing surface on the
> > machine.  What I would envision is sort of like using a jointer (key
> > upside down).  The original plane of the keytop is the best reference to
> > use, since it doesn't rely on the other surfaces of the key.  Any ideas?
> >
> >     Paul McCloud
> >
> >
>