Ratio Question

[David Love]

Should read "solid piece of wood", of course.

David Love


----- Original Message -----
From: "David Love" <davidlovepianos@earthlink.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: January 06, 2003 8:04 PM
Subject: Re: Ratio Question


Typically, the procedure involves cutting off the old knuckle leaving the
core in the shank.  That gives you a solid piece of would in which you can
cut a new notch.  In the past I used a jig and a router which I found
drifted a bit too much.  Now, when I need to do this job, I cut the notch
with a band saw using the old core as a reference.

David Love


----- Original Message -----
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: "Pianotech" <pianotech@ptg.org>
Sent: January 06, 2003 8:59 AM
Subject: Re: Ratio Question




David Love wrote:
>
> That's a good reason to opt for moving the capstan rather than the knuckle
> to fix a problem action.  Small deviations in cutting the new notch for
the
> knuckle will make quite a large difference.  The capstan placement is more
> forgiving.
>
> David Love
>

Grin... very good point. There is a way around that problem however.
Enlargen the notch to just a tad more then you need for two knuckles,
and THEN fill the back side of the notch with appropriately thick
material. Glue knuckels then as usual, with perhaps a bit more liberal
amount of glue.

Sorta like hang'n hammers otherwise.

Cheers

RicB


--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html
_______________________________________________
pianotech list info: https://www.moypiano.com/resources/#archives


_______________________________________________
pianotech list info: https://www.moypiano.com/resources/#archives