Pianotech

remove the bloody whippen assist springs. To do this, correct the leverage at the capstan, & reduce hammer weight

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Jim Ialeggio
grandpianosolutions.com
Shirley, MA
978 425-9026
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Original Message:
Sent: 06-12-2018 05:50
From: David Weiss
Subject: hammer tails hitting wippen assist springs

I installed a set of new hammers on a Samick grand.  The piano has wippen assist springs.  When the hammers return from hitting the strings the tail of the hammer hits the assist spring making an audible click.

Attached is a picture of the original hammers and the new hammers.  The new hammers have the dark molding.  You can see the slight difference in the shape of the hammer tail.  

The only solution I can think of is to shave off some wood from the end of the hammer tail until they no longer touch.  I realize it will drop the hammer weight slightly but it will be insignificant.

I am wondering is there is a different solution and would appreciate suggestions.  Decreasing hammer blow distance or increasing the thickness of the hammer rest felt is not possible.

Thanks,

David Weiss

David,

The hammer rest rail cannot be raised? How much space is there between the shank and the rest cushion?

Alan

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Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483
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Original Message:
Sent: 06-12-2018 05:50
From: David Weiss
Subject: hammer tails hitting wippen assist springs

I installed a set of new hammers on a Samick grand.  The piano has wippen assist springs.  When the hammers return from hitting the strings the tail of the hammer hits the assist spring making an audible click.

Attached is a picture of the original hammers and the new hammers.  The new hammers have the dark molding.  You can see the slight difference in the shape of the hammer tail.  

The only solution I can think of is to shave off some wood from the end of the hammer tail until they no longer touch.  I realize it will drop the hammer weight slightly but it will be insignificant.

I am wondering is there is a different solution and would appreciate suggestions.  Decreasing hammer blow distance or increasing the thickness of the hammer rest felt is not possible.

Thanks,

David Weiss

If those hammers are the same number, the new ones are much bigger! That sets your hammer shank too low with correct blow didtance.

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Larry Messerly, RPT
Bringing Harmony to Homes
www.lacrossepianotuning.com
ljmesserly@gmail.com
928-899-7292
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Original Message:
Sent: 06-12-2018 07:09
From: Alan Eder
Subject: hammer tails hitting wippen assist springs

David,

The hammer rest rail cannot be raised? How much space is there between the shank and the rest cushion?

Alan

------------------------------
Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483

Original Message:
Sent: 06-12-2018 05:50
From: David Weiss
Subject: hammer tails hitting wippen assist springs

I installed a set of new hammers on a Samick grand.  The piano has wippen assist springs.  When the hammers return from hitting the strings the tail of the hammer hits the assist spring making an audible click.

Attached is a picture of the original hammers and the new hammers.  The new hammers have the dark molding.  You can see the slight difference in the shape of the hammer tail.  

The only solution I can think of is to shave off some wood from the end of the hammer tail until they no longer touch.  I realize it will drop the hammer weight slightly but it will be insignificant.

I am wondering is there is a different solution and would appreciate suggestions.  Decreasing hammer blow distance or increasing the thickness of the hammer rest felt is not possible.

Thanks,

David Weiss

Thanks for replies.

Larry, those two hammers are not the same number.  The new hammers are the same size as the old ones.

Alan.  I tried raising the hammer rest rail, but even with the minimum hammer blow distance the shanks will be resting on the rail if I raise it enough to eliminate the click.

Chris.  Very likely that is what I will have to do.

Jim.  I have considered that.  However I think it would be simpler to remove some material from the end of the hammer.  What I may do is remove the wippen assist spring from one or two notes and check touchweight to see how much difference they are making. If the assistance the assist springs give is negligible, I many end up removing them rather than messing the hammer tails. 

Additional input is welcome.


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David Weiss
Charlottesville VA
434-823-9733
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Original Message:
Sent: 06-12-2018 07:09
From: Alan Eder
Subject: hammer tails hitting wippen assist springs

David,

The hammer rest rail cannot be raised? How much space is there between the shank and the rest cushion?

Alan

------------------------------
Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483

Original Message:
Sent: 06-12-2018 05:50
From: David Weiss
Subject: hammer tails hitting wippen assist springs

I installed a set of new hammers on a Samick grand.  The piano has wippen assist springs.  When the hammers return from hitting the strings the tail of the hammer hits the assist spring making an audible click.

Attached is a picture of the original hammers and the new hammers.  The new hammers have the dark molding.  You can see the slight difference in the shape of the hammer tail.  

The only solution I can think of is to shave off some wood from the end of the hammer tail until they no longer touch.  I realize it will drop the hammer weight slightly but it will be insignificant.

I am wondering is there is a different solution and would appreciate suggestions.  Decreasing hammer blow distance or increasing the thickness of the hammer rest felt is not possible.

Thanks,

David Weiss

Original Message------

I installed a set of new hammers on a Samick grand.  The piano has wippen assist springs.  When the hammers return from hitting the strings the tail of the hammer hits the assist spring making an audible click.

Attached is a picture of the original hammers and the new hammers.  The new hammers have the dark molding.  You can see the slight difference in the shape of the hammer tail.  

The only solution I can think of is to shave off some wood from the end of the hammer tail until they no longer touch.  I realize it will drop the hammer weight slightly but it will be insignificant.

I am wondering is there is a different solution and would appreciate suggestions.  Decreasing hammer blow distance or increasing the thickness of the hammer rest felt is not possible.

Thanks,

David Weiss

Why is increasing the thickness of the hammer rest felt not possible and how much space is there between the shank and the rest felt?

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David Love RPT
www.davidlovepianos.com
davidlovepianos@comcast.net
415 407 8320
------------------------------

Original Message:
Sent: 06-12-2018 05:50
From: David Weiss
Subject: hammer tails hitting wippen assist springs

I installed a set of new hammers on a Samick grand.  The piano has wippen assist springs.  When the hammers return from hitting the strings the tail of the hammer hits the assist spring making an audible click.

Attached is a picture of the original hammers and the new hammers.  The new hammers have the dark molding.  You can see the slight difference in the shape of the hammer tail.  

The only solution I can think of is to shave off some wood from the end of the hammer tail until they no longer touch.  I realize it will drop the hammer weight slightly but it will be insignificant.

I am wondering is there is a different solution and would appreciate suggestions.  Decreasing hammer blow distance or increasing the thickness of the hammer rest felt is not possible.

Thanks,

David Weiss

I think Samick relied on the springs instead of leads to balance the action. I would trim a little off the inside of the tail to clear the spring. What is the length of the tail? I would also reduce spring tension and install leads after reducing and graduating the Strike Weight.  The springs should just support the weight of the wippen and not aid in lifting the hammer.

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Regards,

Jon Page
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Original Message:
Sent: 06-12-2018 05:50
From: David Weiss
Subject: hammer tails hitting wippen assist springs

I installed a set of new hammers on a Samick grand.  The piano has wippen assist springs.  When the hammers return from hitting the strings the tail of the hammer hits the assist spring making an audible click.

Attached is a picture of the original hammers and the new hammers.  The new hammers have the dark molding.  You can see the slight difference in the shape of the hammer tail.  

The only solution I can think of is to shave off some wood from the end of the hammer tail until they no longer touch.  I realize it will drop the hammer weight slightly but it will be insignificant.

I am wondering is there is a different solution and would appreciate suggestions.  Decreasing hammer blow distance or increasing the thickness of the hammer rest felt is not possible.

Thanks,

David Weiss