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#1994738 - 12/04/12 06:59 PM Which tuning pin to use?  
Joined: Dec 2005
Posts: 413
woodfab Offline
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woodfab  Offline
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Joined: Dec 2005
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Stoneham, MA
I bought some (DENRO TUNING PINS Nickel with Blued Threads) and I've noticed that the threads feel rough like 200 grit sand paper.
[Linked Image]







The other pins I have laying around all have smooth threads.

My concern is that the rough threads will wear the pin block prematurely.

Or dose the blue coating smooth out after driving them in.

I'm planing to use them in a new pin block.

Any feedback is appreciated.

Last edited by woodfab; 12/04/12 07:09 PM.

Dan (Piano Tinkerer)
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#1994792 - 12/04/12 10:55 PM Re: Which tuning pin to use? [Re: woodfab]  
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kpembrook Online content
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kpembrook  Online Content
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Michigan
One way to think this through is that these tuning pins are installed in hundreds of thousands of pianos. Why would you think you are going to have a problem?

This is not my favorite brand of tuning pin, but you can be confident that they will accomplish their intended purpose for decades. Proceed with confidence.


Keith Akins, RPT
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#1994797 - 12/04/12 11:08 PM Re: Which tuning pin to use? [Re: kpembrook]  
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accordeur Offline
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accordeur  Offline
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Québec, Canada
Originally Posted by kpembrook
One way to think this through is that these tuning pins are installed in hundreds of thousands of pianos. Why would you think you are going to have a problem?

This is not my favorite brand of tuning pin, but you can be confident that they will accomplish their intended purpose for decades. Proceed with confidence.


+1


Jean Poulin

Musician, Tuner and Technician

www.actionpiano.ca
#1994861 - 12/05/12 03:50 AM Re: Which tuning pin to use? [Re: accordeur]  
Joined: Mar 2008
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Olek Offline
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Olek  Offline
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France
I never have seen that, is not the blue coating the normal undercoat (they are blue pins that are nickel plated).?
Will you mike them?


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#1994863 - 12/05/12 03:55 AM Re: Which tuning pin to use? [Re: woodfab]  
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BDB Offline
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Nickel plated, then the threads are cut, and the threads are blued, like other pins.


Semipro Tech
#1994876 - 12/05/12 04:57 AM Re: Which tuning pin to use? [Re: woodfab]  
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Olek Offline
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Olek  Offline
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France
I did not see pins blued after threading but before, did not pay much attention but those Denro pins are uncommon here.


Professional of the profession.
Foo Foo specialist
I wish to add some kind and sensitive phrase but nothing comes to mind.!
#1994878 - 12/05/12 04:59 AM Re: Which tuning pin to use? [Re: woodfab]  
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Olek Offline
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Olek  Offline
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Joined: Mar 2008
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France
I did not see pins blued after threading but before, may be I did not pay much attention but those Denro pins are uncommon here.

Bluing is done before threading it can be seen on those as well.
Regards


Professional of the profession.
Foo Foo specialist
I wish to add some kind and sensitive phrase but nothing comes to mind.!
#1995045 - 12/05/12 01:16 PM Re: Which tuning pin to use? [Re: woodfab]  
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Posts: 413
woodfab Offline
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woodfab  Offline
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Stoneham, MA
Thanks for comments.

I found this thread which answers some of my concerns.
<http://mail.ptg.org/pipermail/caut/2008-July/026824.html>



Dan (Piano Tinkerer)
#1995130 - 12/05/12 04:52 PM Re: Which tuning pin to use? [Re: woodfab]  
Joined: Mar 2008
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Olek Offline
9000 Post Club Member
Olek  Offline
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Joined: Mar 2008
Posts: 9,230
France
Ah I recall that conversation, have seen it yet. All the pins I use have smooth threads, what count to me is the precision in diameter and the elasticity of the metal.

The best pins to me are the Klinke "diamant" , the Biene are also good but the kinke are more springy. The Japanese NKG pins are somewhat soft in comparaison.

since a few years i consider the pin is acting in the tone way more than it is imagined.

Miking a box of pin gives generally 2 or 3 diameters but on the good brands there is much consistency, so the miking is just to avoid too small ones in the basses.

Miking is not as precise as it is thought, as the diameter may differ in different portions of a pin, no need to be too picky there (with the best pins, which are not really cheap also)



Professional of the profession.
Foo Foo specialist
I wish to add some kind and sensitive phrase but nothing comes to mind.!

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