[CAUT] Knuckle Direction

[Jim Busby]

Hi Norman,

That's what I think too, but I just looked at a set of Renner shanks and flanges and the jack would return going against the grain. I love this job... <G>

Best,
Jim

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Norman Cantrell
Sent: Tuesday, June 01, 2010 2:35 PM
To: caut at ptg.org
Subject: Re: [CAUT] Knuckle Direction

Paul

It is my understanding that you want the nap of the leather to flow toward the rest position of the jack.  There will be ample energy to move the jack out from under the knuckle and a little scrubbing aloows for more control by the player,  but you want the least resistance as it returns to its rest position.

Regards

Norman Cantrell, Registered Piano Technician

--- On Tue, 6/1/10, Dempsey Jr., Paul E <dempsey at marshall.edu> wrote:

From: Dempsey Jr., Paul E <dempsey at marshall.edu>
Subject: [CAUT] Knuckle Direction
To: "pianotech at ptg.org" <pianotech at ptg.org>
Cc: "caut at ptg.org" <caut at ptg.org>
Date: Tuesday, June 1, 2010, 2:57 PM
OK, maybe just too much week-end or perhaps old-timers....

I am re-knuckle-ing a set of grand shanks. The new parts are of Able manufacture and have a pencil line on each.

Does this line face the flange or the hammer?

I know the line indicates the direction of the nap of the leather, but which way is preferable.



Paul E. Dempsey, RPT
Piano Technician Sr.
Marshall University
Huntington, WV
304-696-5418
304-617-1149


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/caut.php/attachments/20100601/b48336ce/attachment-0001.htm>