Poor key morticing

[Joe And Penny Goss]

Hi Mike,
The only way to correct the poor drilling is to remove the button and drill
out the key. Be sure to mark the placement of the button for and aft before
removing it. And set the limit on your drill press so that too much wood is
not removed.
Joe Goss RPT
Mother Goose Tools
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Mike Bratcher" <MBratPianos@indy.rr.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Wednesday, September 08, 2004 12:47 PM
Subject: Re: Poor key morticing


> Yes, I am aware of how to ease a hole properly, but easing isn't the
problem
> here.  The problem here is that when the key was manufactured they left
too
> much wood in the top part of the balance hole.  If I were to just ease the
> hole, I would not be correcting the problem.  The key is "teetering" on a
> pin, so if the bottom of the balance rail hole is resting on the punching
> the top of the hole will wedge against the pin.  Now the top of "that"
hole
> needs to have clearance when the key is depressed.  When I say top of
"that"
> hole, I don't mean the top of the key button.  I'm talking about one
> sixteenth to one eighth of an inch above the balance rail hole.  The wood
> here is about one eighth.  There needs to be clearance at the top of that
> hole roughly an arch, to clear the pin.  Otherwise the pin will be
bending.
> And, yes Terry they are all tight(pins in the balance rail that is).
Normal
> Key easing in this area will size the hole, but it will not address the
> problem at the top of the hole.  My easing tool if used to try this will
> damage the hole and create more problems.
>
> Mike Bratcher
> ----- Original Message ----- 
> From: "Keith McGavern" <kam544@gbronline.com>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Wednesday, September 08, 2004 9:36 AM
> Subject: Re: Poor key morticing
>
>
> > At 7:47 AM -0500 9/8/04, Mike Bratcher wrote:
> >>... I wondering if anyone had good ideas or ways of dealing with keys
that
> >>have a lot of wood around the balance rail pin.  The wood is not
allowing
> >>the key to move freely.
> >
> > Mike,
> >
> > The process to do this is called "easing" by either compressing the wood
> > in the balance rail hole or physically removing it.
> >
> > Their are piano tools specifically made for this job. Consult our piano
> > supply house catalogs.
> >
> > By the way overdoing it makes for another job that's more involved, so
> > steer clear.
> >
> >>... This all makes for VERY poor touch.
> >
> > Of course.
> >
> > Keith
> > -- 
> > Keith McGavern
> > Registered Piano Technician
> > Oklahoma Chapter 731
> > Piano Technicians Guild
> > USA
> >
> > _______________________________________________
> > pianotech list info: https://www.moypiano.com/resources/#archives
> >
>
>
> _______________________________________________
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