Tuning pin Drilling Angle

[John Ross]

I like Newton's idea of using a square, with a 1/8" bock on the end, to get
an idea of what is right, for the particular piano.
Regards,
John M. Ross
Windsor, Nova Scotia.
jrpiano@win.eastlink.ca
----- Original Message -----
From: "Joseph Garrett" <joegarrett@earthlink.net>
To: <pianotech@ptg.org>
Sent: Sunday, March 10, 2002 5:44 PM
Subject: Tuning pin Drilling Angle


> Del,
> YOU taught me 5 degrees, remember? Seriously tho, it depends on the
> configuration of the bearing surfaces between the tuning pin and the
> aggraffe/capo bar/"v" bar/etc.
> In the typical grand there is a low bearing surface and then the aggraffe
at
> a lower plane. In many grands there is a thicker bearing surface that
> dictates that the tuning pin angle needs to be greater in order for the
> string to "slightly" bear up against the coil.
> I should not have given the 5 degrees suggestion without clarifying the
> situation. For most of us, (rebuilders), it becomes intuitive as to what
> angle to drill at, regarding the configuration of the web/bearing
> surface(s), etc.
> In some of the really olde, open-faced pin blocks, the pinblock itself is
at
> a pretty steep angle. In that case I choose to drill whereas the tuning
pin
> is straight up and down, even tho the actual angle of tuning pin/pinblock
> surface may be as much as 10 degrees!
> I think the rule should be: examine the situation and drill accordingly.
> Best Regards,
> Joe Garrett, RPT, (Oregon)
>
>