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Key Pounder Machine on an Upright Piano
#2888265 09/08/19 01:43 PM
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First time I put my key pounder on an upright piano. It was even a request.

https://www.youtube.com/watch?v=8JjoCzhkd0w


Chernobieff Piano Restorations
"Where Tone is Key"
Lenoir City, Tennessee U.S.A
www.chernobieffpiano.com
grandpianoman@protonmail.com
Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2888268 09/08/19 01:46 PM
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Very cool. Question- Is it less than 88 keys so as to be usable on pianos with fewer keys?


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Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2888285 09/08/19 02:58 PM
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Not particularly musical sounding, but certainly interesting!

I watched a video of a master piano technician needling/voicing hammers on a Yamaha grand. Afterward, if any of the hammers were too soft or mellow, he'd take a piece of wood/board and pound that hammer face onto the hard surface of the board, using the action key, of course.

Great video, Chernobieff Piano!

Rick


Piano enthusiast and amateur musician: "Treat others the way you would like to be treated". Yamaha C7. YouTube Channel
Re: Key Pounder Machine on an Upright Piano
Tyrone Slothrop #2888400 09/08/19 07:34 PM
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Originally Posted by Tyrone Slothrop
Very cool. Question- Is it less than 88 keys so as to be usable on pianos with fewer keys?


Its less than an 88 keys because of a mechanical issue with the pulley system. But that's ok because its main purpose is to assist in mating the hammers to the strings, which is not necessary with the single strings..


Chernobieff Piano Restorations
"Where Tone is Key"
Lenoir City, Tennessee U.S.A
www.chernobieffpiano.com
grandpianoman@protonmail.com
Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2888477 09/09/19 02:06 AM
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What is its maximal speed?

Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2888528 09/09/19 06:42 AM
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What's this good for?

I never heard of such a machine.

Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2888538 09/09/19 07:33 AM
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Originally Posted by U3piano
What's this good for?

I never heard of such a machine.


Usually breaking in/voicing new hammers. All the major piano manufacturers have these machines and use them on new pianos. I think probably fewer rebuilders have them, but Chernobieff Piano does, apparently. smile

Rick


Piano enthusiast and amateur musician: "Treat others the way you would like to be treated". Yamaha C7. YouTube Channel
Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2888557 09/09/19 09:20 AM
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Remind me not to let you near my piano.


When you play, never mind who listens to you. R.Schumann.

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Re: Key Pounder Machine on an Upright Piano
Iaroslav Vasiliev #2888584 09/09/19 11:21 AM
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Originally Posted by Iaroslav Vasiliev
What is its maximal speed?


About as fast as you can run LOL. I say that because i built it using a treadmill motor!


Chernobieff Piano Restorations
"Where Tone is Key"
Lenoir City, Tennessee U.S.A
www.chernobieffpiano.com
grandpianoman@protonmail.com
Re: Key Pounder Machine on an Upright Piano
Rickster #2888585 09/09/19 11:25 AM
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Originally Posted by Rickster
Originally Posted by U3piano
What's this good for?

I never heard of such a machine.


Usually breaking in/voicing new hammers. All the major piano manufacturers have these machines and use them on new pianos. I think probably fewer rebuilders have them, but Chernobieff Piano does, apparently. smile

Rick

Yes, every new piano and rebuilt piano needs to be broken in to fully bring out its voice. If a rebuilder doesn't have this machine, then they are more or less letting the client break in the piano.


Chernobieff Piano Restorations
"Where Tone is Key"
Lenoir City, Tennessee U.S.A
www.chernobieffpiano.com
grandpianoman@protonmail.com
Re: Key Pounder Machine on an Upright Piano
Learux #2888589 09/09/19 11:34 AM
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Originally Posted by Learux
Remind me not to let you near my piano.


Ah come on now. You seem to be under the misconception that this is detrimental to a piano, when its actually an enhancement.

When the hammer is not striking all three strings at precisely the exact moment a weird noise occurs in the tone. Very similar in sound to a hardened damper landing on a string. It can take many hours of playing the piano to do what the machine can do in a few minutes, even after its been voiced.

If my machine is bad for the piano, then every single player piano is too.
-chris


Chernobieff Piano Restorations
"Where Tone is Key"
Lenoir City, Tennessee U.S.A
www.chernobieffpiano.com
grandpianoman@protonmail.com
Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2888640 09/09/19 03:58 PM
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I should brought that ultra new U1 that I once owned to you
to "break it in", but then we may have missed our chance to upgrade!
which would have been a pity.
Sometimes buying a piano is a "hit and miss" affair as well.
I am sure not the case with your machine.It sounds a little like
Minimalist music.

Last edited by Lady Bird; 09/09/19 04:03 PM. Reason: Spelling
Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2888972 09/10/19 11:53 AM
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Wow! You even got it to play John Cage's greatest hits!

Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2889322 09/11/19 02:58 PM
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Whenever I pull up a video linked here I always turn down any other sound so I can hear it clearly. I did that for this one and then thought, “wait a minute!” I don’t need to hear a key pounder clearly! wink ha



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Re: Key Pounder Machine on an Upright Piano
Lady Bird #2890818 09/16/19 01:30 AM
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I'm not sure if YAMAHA still do.

But when I bought a new UX in 1977, one of the sales pitches pointed out to me was that YAMAHA plays the piano on a machine before being sent out to customers. Mine arrived still in the crate, sealed in a silver/plastic bag, in very good tune, and, despite a very humid environment was an extremely stable piano.


Alan from Queensland, Australia (and Clara - my Grotrian Concert & Allen Organ (CF-17a)).
Re: Key Pounder Machine on an Upright Piano
backto_study_piano #2890823 09/16/19 02:05 AM
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Originally Posted by backto_study_piano
I'm not sure if YAMAHA still do.

But when I bought a new UX in 1977, one of the sales pitches pointed out to me was that YAMAHA plays the piano on a machine before being sent out to customers. Mine arrived still in the crate, sealed in a silver/plastic bag, in very good tune, and, despite a very humid environment was an extremely stable piano.

Can you get the UX as a brand new piano in Australia? In Canada it is a used piano sent over from Japan .Some of these are very good pianos however as I have discovered.They have X supporting
beams at the back of the piano.So sturdy !

Re: Key Pounder Machine on an Upright Piano
Lady Bird #2890898 09/16/19 08:06 AM
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Originally Posted by Lady Bird
Originally Posted by backto_study_piano
I'm not sure if YAMAHA still do.

But when I bought a new UX in 1977, one of the sales pitches pointed out to me was that YAMAHA plays the piano on a machine before being sent out to customers. Mine arrived still in the crate, sealed in a silver/plastic bag, in very good tune, and, despite a very humid environment was an extremely stable piano.

Can you get the UX as a brand new piano in Australia? In Canada it is a used piano sent over from Japan .Some of these are very good pianos however as I have discovered.They have X supporting
beams at the back of the piano.So sturdy !

"... when I bought a new UX in 1977 ..." - the UX with the "X" frame was dropped in the early '80s, replaced, with the YUX in Australia. I can't recall if the "X" frame carried on to the YUX, but I think was gone by the UX1 which replaced it (though I've only seen them as a grey import).

Not sure if this picture link will work: http://www.bestpianodeals.com/uxbackview1.JPG


Alan from Queensland, Australia (and Clara - my Grotrian Concert & Allen Organ (CF-17a)).
Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2891102 09/16/19 05:40 PM
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OH yes I cannot remember it was something like that on the UX that I saw or am I correct ?

So they are a grade up than the U1 perhaps nearer the YUS series ?
I have recently bought an extra teaching piano (apart from the Sauter)
It IS a grey import but been in Vancouver for 22 yrs so well adjusted to
the climate.It is a 1985 Kawai KL502 (49 ")
In Canada it was owned by a lady who never used it much.
It was not much,I mean the price ,but the piano has a very tone,holds tuning
and the action fine !
So now I know for sure some of these (grey imports) are fine !
Well it sounds as if your piano was a great success.I remember you saying you
practiced for a diploma on that piano.

Last edited by Lady Bird; 09/16/19 05:45 PM. Reason: Spelling
Re: Key Pounder Machine on an Upright Piano
Chernobieff Piano #2891109 09/16/19 06:03 PM
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The new U1 that was mentioned was in the dealer for a short time after being in the warehouse .
But had been tuned ,and well prepared. But its moods changed from day to day.
I do not know if it was a "lemon" or was just too new for me ?
I suppose I will never now know ? It was a full trade up.towards the Sauter.
Before that I had a "gray " YU10 (a disaster )but was able to return for a full refund.(damaged ?)


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