Regulating Key Dip and Aftertouch - Piano Tuning & Repair I HOWARD PIANO INDUSTRIES
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- čas přidán 1. 08. 2024
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Regulating Key Dip and Aftertouch - Piano Tuning & Repair I HOWARD PIANO INDUSTRIES
One important step in regulating a piano action is to regulate the key dip and aftertouch. This video demonstrates the techniques and tools to use to accomplish this step in the piano regulation process.
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🎥 Video Chapters
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00:00 - Intro
01:03 - Key Dip Blocks
03:48 - Aftertouch Thickness
04:02 - Key Dip & Aftertouch Adjustment
⏩ Links and Resources:
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✔️ Front Rail Felt Punchings
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✔️ Balance Rail Felt Punchings
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✔️ Piano Key Dip Block
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Great instructional video! I’m learning all about key dips!
Is there anywhere at this channel to watch all videos on GRAND regulation in the ORDER that you would do the tasks ?
Regulating an upright piano and grand piano is very similar. Some things are different but most are the same. There are videos out there on grand piano regulation. Best case scenario I would invest in Piano Technician Academy's: Piano Tuning and Repair Course. I am currently completing their more updated course and I've already done the previous version of the course. Excellent for learning piano tuning and repair. Also, has great info for starting a piano technology business.
My piano has loose keys and needs TLC.. probably cost a fortune to get it professionallyl fixedl.. Thanks for this. 👍🇳🇿
"Between 3/8 and 7/16 of an inch" means between 9.5 and 11 millimeters.
"Forty thousands of an inch" (aftertouch) is 1.016 mm.
nice serial of gauges, I do that mostly for grands.
You can hear with the way the hammer impact synchronize with full key dip, if the aftertouch is correct or no.
But, the backcheck is retaining the butt. To make perfect samples and find what the hammer travel will be I bend the backcheck wire out off the way. Then I can see where the jack will be at full dip, as the hammer is showing that.- the distance is more than the checking distance , about 8-10 mm.
Hammer travel is decided that way in some factories.
One can regulate key dip first, (after making samples) then checking, by tone and sensations under the finger.
AFtertouch is a mean to have just the good amount of backcheck wire compression.so the hammer is released easily but checks well.
Goo tricks and method in that video.
Thank you Isaac for watching and for your helpful comments! I appreciate your input.
Hi, trying to work better, to understand more the functions, is the only way to be efficient in limited time, or in difficult cases, For instance I had to make a "normal touch" with a Bechstein equipped with a silent system, all the tricks and the knowledge of vertical touch allowed me to success, an avoid the too large aftertouch sensation generally find with those actions (backcheck wire compressed a lot, no way to really play in the bottom of the keys or to play lightly.)
But in any case,; precision is always the place from where to start ;) leveling the keys with 0.06mm papers did "much" for the touch, in that case, for instance.(better attack angle , at a hair of a degree, is sensitive on the best instruments) etc...regards
Thanks for taking your time studying your piano! I play! How about you!
Hi! Did you recommend a key dip of more than 7/16 "? If I use that, or less than that in my piano, the backcheck stays far behind and does not touch the catcher. I don't understand what is the problem
How do you know the perfect amount of key dip?
The standard is 3/8". So I would start with that and you can go a little more if desired.
In mm . ? Greetings from holland
Do yoy have a video on how to adjust key dip on the black keys? still a bit confused how to use that tool you have for it.
I suppose same method as on the white keys. You just have to adjust before head with all the white keys removed.
Hi there. Would you please explain how the amount of aftertouch affects the playability of the piano. There's precious little information about it on the web. Thanks.
Generally if you have more aftertouch, the action is going to be perceived as having more weight, but if you have less aftertouch, the pianist will tend to have better control when playing fast.
How about the back rail, how does this affect the key height and key dip.
That will affect the height of the key so if your leveling your keys then you either add or remove paper
punching on the balance rail
Hi my upright piano has the keyslip built into the piano frame with no way to remove it. Will I have to check after touch from the side of the keybed and remove a key at a time to check it?
Yes, unfortunately checking aftertouch is more difficult in these pianos. This isn't very common. If you have different thicknesses of cardboard punchings, you could also check the aftertouch with those. To see if you have .030" aftertouch you could put a .030" punching on top of the felt punching to check this.
Hello Steve,
Is it possible to adjust key deeps in grand when the action is removed from the keys (so all the keys are down)?
Otherwise it should be a painful and a very long process
Yes, there are a couple of options. On many grand pianos the keys can be lifted up enough with the action on to slip the punchings on and off the front rail pins. Another option is to put the punchings on by putting a slit in the punching so it can be slid onto the pin through the slit. I hope this helps.
howardpianoind what about the black keys? How can aftertouch be regulated on those without removing the white notes?
When I took the action out, most of the white keys sank down toward the front rail. All the holes are loose enough, and the pins polished, the key mover freely. It looks like it's not enough of weight of the key to tilt back. I also played with the central pin but nothing seems to work. I don't feel any friction anywhere.Whet I put the action back, the keys look normal. Any suggestions? Thank you.
Hi Galina, It is normal for the front of the keys to drop down when the action is removed as the weight of the action is what keeps the front of the keys up when it is in.
I DUNNO
Doesn't adding punchings to adjust after touch effect key dip? I'm confused about how to adjust after touch. Would other adjustments also effect after touch, such as adjusting back checks?
Yes, adding punchings will affect the key dip. The other adjustments are adjusting the punchings on the balance rail pin and adjusting the hammer blow distance. You want to work with these adjustments to get the correct combination.
Thank you Mark for your helpful contribution!
Ok, but I still don't understand the right sequence. if key dip must be the same for all keys, when you try to adjust after touch, you will have different key dip for your keys. How can I adjust after touch and maintain the same key dip in all keys? Thanks
@@marcelod3666 i have the same cuestion. Did you find an answer? I'm very confused. It's like everything you touch, affects other thing, and i don't know what should i do
What's the overall effect of having more or less key dip?
Less key dip tends to give a little more control as you have less key travel, but you also sacrifice power which you get with more key dip.
@@howardpianoind Thanks - what's the largest amount of key dip you'd recommend? 3/8" is usually recommended but what about more than that? For instance I've been testing mine at just over 7/16", which you mention in the video, but I'm not sure if it's too much. Are most grands at 3/8"?
You could go to 13/32”, but 7/16” may seem excessive to some.
Yes, I enjoy playing the piano as well. Here is a video I've uploaded: Majesty - Piano Solo Arranged by Bruce Greer
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in case you hate inches, that would be 9.5 - 11 mm 🙂
Thanks!