[CAUT] Slipping Beckets

[David Ilvedson]

I like it!   A photo would be nice, but I understand what you did...you used a grinding wheel's edge?
Are these slip jaw pliers?   Probably not...Channelock?
David Ilvedson, RPT

Pacifica, CA  94044

----- Original message ----------------------------------------
From: "Ed  Sutton" <ed440 at mindspring.com>
To: caut at ptg.org
Received: 2/5/2010 5:22:10 AM
Subject: Re: [CAUT] Slipping Beckets


>I have a small pair of flat-jawed pliers, exactly as wide as a tuning pin. I've ground 
>the outer contour of the jaw round, like a tuning pin. With a quick grab of the pliers, 
>I can make a sharp bend for the becket, and also begin to form a curve in the wire 
>that will fit snugly around the pin. Then I put the pin onto the wire, crank it and drive 
>into the pinblock. 

>This requires a 10 second investment at the start, but the payoff comes comes 
>when tightening the coils and beckets. I've not had any slipping beckets.

>Ed Sutton
>  ----- Original Message ----- 
>  From: Jim Busby 
>  To: caut at ptg.org 
>  Sent: Friday, February 05, 2010 7:23 AM
>  Subject: Re: [CAUT] Slipping Beckets


>  Hi Ed,

>   

>  I agree. Hole size isn't the issue as ALL holes are "too big" for #13 wire. I use bare 
>hands for better grip, leave a tiny bit protruding (1/64 or smaller)so that when the 
>coil is formed the becket ends up exactly flush with the TP hole. Most students here 
>that have this slipping becket problem are trying to use a coil maker, or aren't 
>allowing for this "drawing in" of the wire as the sharp bend is made.

>   

>  Jim Busby

>   

>  From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Ed 
>Foote
>  Sent: Thursday, February 04, 2010 5:11 PM
>  To: caut at ptg.org
>  Subject: Re: [CAUT] Slipping Beckets

>   

>    Albert wrote"

>     

>     

>    In most respects I really like Diamond brand tuning pins, especially their 
>consistency in size.  However, since I began restringing pianos with them, I have 
>had to replace anywhere from one to six treble strings per piano because beckets 
>have slipped.  I've never had this happen before, and I'm wondering whether 
>anyone else has had a similar experience.


>    I suggest that there is something other than a friction problem.  The only time I 
>have had a becket slip was when I didn't form an acute angle at the bend, or began 
>turning the pin with the becket half-way out. .  I don't see any way a becket can slip 
>out if it is bent sharply at the hole, unless, as Del said, the hole is way too big.  The 
>larger hole allows the exit angle to be less than 90 degrees.  If sharply bent, and 
>laying against the side of the pin when rotation begins, the becket would have to 
>back out against the force of the coil, or the wire would have to flow around the 
>corner.  I have never seen that happen.  
>  Regards,
>    

>   

>  Ed Foote RPT
>  http://www.uk-piano.org/edfoote/index.html

>   

>