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Which tuning pin to use? #1994738
12/04/12 07:59 PM
12/04/12 07:59 PM
Joined: Dec 2005
Posts: 421
Stoneham, MA
woodfab Offline OP
Full Member
woodfab  Offline OP
Full Member

Joined: Dec 2005
Posts: 421
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 08:09 PM.

Dan (Piano Tinkerer)
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Re: Which tuning pin to use? [Re: woodfab] #1994792
12/04/12 11:55 PM
12/04/12 11:55 PM
Joined: Apr 2010
Posts: 1,954
Michigan
K
kpembrook Offline
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kpembrook  Offline
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K

Joined: Apr 2010
Posts: 1,954
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
Piano Technologist
USA Distributor for Isaac Cadenza hammers and Profundo Bass Strings
Supporting Piano Owners D-I-Y piano tuning and repair
editor emeritus of Piano Technicians Journal
Re: Which tuning pin to use? [Re: kpembrook] #1994797
12/05/12 12:08 AM
12/05/12 12:08 AM
Joined: Jun 2006
Posts: 1,404
Québec, Canada
accordeur Offline
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accordeur  Offline
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Joined: Jun 2006
Posts: 1,404
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
Re: Which tuning pin to use? [Re: accordeur] #1994861
12/05/12 04:50 AM
12/05/12 04:50 AM
Joined: Mar 2008
Posts: 9,230
France
O
Olek Offline
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Olek  Offline
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O

Joined: Mar 2008
Posts: 9,230
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?


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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Re: Which tuning pin to use? [Re: woodfab] #1994863
12/05/12 04:55 AM
12/05/12 04:55 AM
Joined: Jun 2003
Posts: 27,100
Oakland
B
BDB Offline
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Oakland
Nickel plated, then the threads are cut, and the threads are blued, like other pins.


Semipro Tech
Re: Which tuning pin to use? [Re: woodfab] #1994876
12/05/12 05:57 AM
12/05/12 05:57 AM
Joined: Mar 2008
Posts: 9,230
France
O
Olek Offline
9000 Post Club Member
Olek  Offline
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O

Joined: Mar 2008
Posts: 9,230
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.!
Re: Which tuning pin to use? [Re: woodfab] #1994878
12/05/12 05:59 AM
12/05/12 05:59 AM
Joined: Mar 2008
Posts: 9,230
France
O
Olek Offline
9000 Post Club Member
Olek  Offline
9000 Post Club Member
O

Joined: Mar 2008
Posts: 9,230
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.!
Re: Which tuning pin to use? [Re: woodfab] #1995045
12/05/12 02:16 PM
12/05/12 02:16 PM
Joined: Dec 2005
Posts: 421
Stoneham, MA
woodfab Offline OP
Full Member
woodfab  Offline OP
Full Member

Joined: Dec 2005
Posts: 421
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)
Re: Which tuning pin to use? [Re: woodfab] #1995130
12/05/12 05:52 PM
12/05/12 05:52 PM
Joined: Mar 2008
Posts: 9,230
France
O
Olek Offline
9000 Post Club Member
Olek  Offline
9000 Post Club Member
O

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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