Discussion Posts

  • Posted in: Pianotech

    I've been using the large SS thumbtacks that come with the PLS undercover kits, with a cardboard punching behind it if necessary (it usually isn't). The smooth rounded surface of the tack doesn't add much friction to shift operation. ------------------------------ ...

  • Posted in: Pianotech

    Jim I would say that somewhat misrepresents my points (not entirely) so let me clarify.  My comments are interspersed and underlined. Impedance of a board system is one part of the choice of hammer decision.  Another  equally important determining ...

  • Posted in: Pianotech

    David L< I have put Ronsen hammers on high impedance bellies and while that happened to be what the customer wanted (the case I'm thinking of is a Ronsen Wurzen hammer on a Bosendorfer 225), I found it somewhat lacking.  The player was fine because they ...

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    RE: Hammer tail shape

    Posted in: Pianotech

    Thanks for your input, David.  The project parameters are as follows:  55 year old Yamaha G3 piano with (as far as I can tell) original parts.  Action work:  new Yamaha hammers and shanks (parts fresh out the wrapper, but maybe 35 years old?), new back ...

  • Posted in: Pianotech

    Floyd - I haven't had a chance to read through Eric's thread yet, but if it doesn't address the question I raised as to whether the angled backcheck configuration is as bad as we think, I'm wondering as to its efficacy, given that you also have to re-face ...

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    RE: Hammer tail shape

    Posted in: Pianotech

    This is hammer 31 in the low tenor. The modification is simply to establish a perpendicular relationship between the checking surface and the shank. ------------------------------ Floyd Gadd Regina SK 306-502-9103 ------------------------------

  • Posted in: Pianotech

    Hi, Let me ask you a question that will bring more problems. I can't be sure but is the hammer glued on at a 90 degree angle? Why wasn't it if my eyes don't deceive me? Is there a problem with the hammer distance in the treble ? Are they all glued ...

  • Posted in: Pianotech

    What years of duplicates do you have? ------------------------------ Benjamin Sanchez, RPT Piano Technician / Artisan (805) 315-8050 www.professional-piano-services.com ------------------------------

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    RE: Hammer tail shape

    Posted in: Pianotech
  • Posted in: Pianotech

    Awesome,, the jacks add a different "heavy" feel than dampers. Brushing them??? Wouldn't that rough up the leather unevenly? I forget who,, Maybe Mr Foote,, one of the amazing techs out there, I now use sand paper maybe a 350 emery to clean and finer ...

  • Posted in: Pianotech

    Follow Up after doing some research on setting Key Height: After reading a number of Journal articles and various resources in my piano technology library I have come up with the following deductions about setting Key height. Please let me know if you ...

  • Posted in: Pianotech
  • Posted in: Pianotech

    Let me add that, yes, the softer hammer dwells longer and tends to filter out partials, especially high partials and particularly where the period of the frequency coincides with the dwell time as it does in the lower capo section especially.  More mass ...

  • Posted in: Pianotech

    Thank you to all that responded. I went back today and was successful in fixing the piano and making the pianists happy. When I got there I first checked to be sure the keyslip wasn't binding on the white keys, ok. Checked the key dip and it was too ...

  • Posted in: Pianotech

    Roger You are technically correct.  In this case I use the term "matching" more in the sense of a proper pairing much like wine and food.  They aren't equal, they don't nullify the other, rather, they enhance each other.  I've heard many poor pairings ...

  • Posted in: Pianotech

    David, I concur with your statements. I might add to your comment about partials and their formation. The way I visualize it, a soft hammer dwells on the string longer killing any partials that may be forming in the longitude mode leaving only the vertically ...

  • Posted in: Pianotech

    John, I tried to get a little interest in numerous years of my journals...no takers. Ended up taking them to the landfill.  Pwg ------------------------------ Peter Grey Stratham NH 603-686-2395 pianodoctor57@gmail.com ---------------------------- ...

  • Posted in: Pianotech

    James - If you started talking about some Kawai you had seen that has 5 wheels and needs refinishing, THAT would be Off Topic. After thoroughly grasping your method (I think), a question comes to mind: What tool or tools from Advance Auto will you or ...

  • Posted in: Pianotech

    Since I was the one in our chapter with storage space, over the years I ended up with the journals and other piano related catalogues, brochures, etc after various members death. Also I have what had been our chapter journal library. After sorting out ...

  • Posted in: Pianotech

    I agree with several about the Ronsen Bacon felt being the best for receiving hardeners.  I haven't used Weickert felt in awhile having abandoned it for Wurzen felt when the need arises for a somewhat stiffer hammer out of the box.   I was struck by ...

  • Posted in: Pianotech

    Roger I think you are assuming that I leave the piano in an unacceptable state planning that it will become acceptable in 100 hours.  That would be an incorrect assumption.  I leave the piano in the state that the customer likes it,  concert instruments ...

  • Posted in: Pianotech

    Thomas, I agree. Keytop/acetone is too edgy, but I don't hear that if it is restricted to the lower regions of the hammer. Exception though -- notes approximately 85 - 88. ------------------------------ Roger Gable Gable Piano Everett WA 425-252-5000 ...

  • Posted in: Pianotech

    David, 100 hours of "play-in"? How do you explain to the pianist that the piano will sound fine 100 hours after their performance? Roger ------------------------------ Roger Gable Gable Piano Everett WA 425-252-5000 ---------------------------- ...

  • Posted in: Pianotech

    This is off topic for the thread subject on Yamaha regulation but I had a problem key slip on a Kawai upright recently where the keyslip was pressing in several keys in octave 5. I fabricated two small clips made out of soft aluminum hobby stock. A one ...

  • Posted in: Pianotech

    Depends upon what you're likely to come up with when you reach into your pocket.   Other thing is that it's not always so easy to pull back the keyslip and properly direct the 'nickel' to the proper place. Gluing the 'nickel' onto the front of the keyframe ...

  • Posted in: Pianotech

    I no longer remember the model number. If you want, I can give you his phone number. ------------------------------ Gary Howell Buckeye Piano Tuning Massillon OH ------------------------------

  • Posted in: Pianotech

    Wouldn’t a thick cardboard front rail punching be a better choice than a hard metal nickel? Sent from my iPad

  • Posted in: Pianotech

    Hi Jim / all, Perfectly agreed and Bacon felt is great too. Ray has been making modified less-dense Weichert hammers upon request. I am theorizing that the Weichert might last longer than the Bacon, but maybe they will be pretty similar. Best, Tom

  • Posted in: Pianotech

    Floyd - Hopefully you know how to access older posts to this list... it's not clear to me, however, if you find the discussion 'backcheck regulation' initiated by Eric Johnson on 8/29/20, it has an extensive examination of the geometry issues, in detail.  ...

  • Posted in: Pianotech

    A nickel dropped in between the key frame and key slip will eliminate keys hanging up against the fronts and the key slip. I call it the nickel fix for Steinway grands. ------------------------------ Regards, Jon Page mailto:jonpage@comcast.net http://www.pianocapecod.com ...

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    RE: Hammer Technique

    Posted in: Pianotech

    I am very leery of any substance that dries and leaves a gunny residue to attract dirt or has a tendency to creep. CBL has only 16% metal preservative/oil and it does not creep. I use CBL solely on counter bearings, key pins and centers. I don't advocate ...

  • Posted in: Pianotech

    If a client says the piano is playing heavily, there are numerous places to look. Bedding isn't generally one of them. Lack of aftertouch, badly worn hammer knuckles, keys or action parts in need of lubrication or repinning, damper timing, etc. After ...

  • Posted in: Pianotech

    Jim, the next time you experience pitch reacting quickly and not quickly to force, look at the NSL.  You mention a lot about friction and elasticity but your explanations of how to read the system are a bit confusing.  What I am suggesting is that ...

  • Posted in: Pianotech

    Nailed it! 🙂 ------------------------------ Mark Cerisano, RPT B.Sc.(Mech.Eng.), Dip.Ed. https://howtotunepianos.com http://mrtuner.com 1-866-678-8637 ------------------------------

  • Posted in: Pianotech

    To me, it seems that everyone has the same experience. Obviously. We are all tuning pianos. They are just describing it differently. ------------------------------ Mark Cerisano, RPT B.Sc.(Mech.Eng.), Dip.Ed. https://howtotunepianos.com http://mrtuner.com ...

  • Posted in: Pianotech

    Yes. Friction does differ as you said. My point was that friction doesn't differ as much as we think based on how the string renders. Some of the most famous and experienced concert level piano technicians I have talked to have never heard of Hooke's ...

  • Posted in: Pianotech

    What David Love has outlined mirrors close to what I'm doing with Weikert hammers. The only big difference is that I've morphed away from lacquer altogether due to the horrible fumes it puts out. And I now shy away from the keytop/acetone solution as ...

  • Posted in: Pianotech

    Voice up Ronsen Bacons is my preference, with the treble lightened up as light as the moldings will allow.  i'm curious why Tom didn't mention the Bacons, which is much better felt than it was 5 years ago.  B72 in pure ethanol in 2 or 3 different dilutions. ...

  • Posted in: Pianotech

    A nickel, with that 2 mm thickness, is also a handy way to judge black key dip above the white keys, and... A nickel also weighs exactly 5 grams. Which can be handy during certain transactions. Sometimes. ------------------------------ Geoff Sykes, RPT ...

  • Posted in: Pianotech

    Nick, If history serves us out, I'm sure we'll receive a plethora of beliefs and ideas about this subject. I'll put in my 2 cents worth. I'm pretty much on board with Thomas Wright. Voicing up generally attains my conceived "perfect" piano tone. As ...

  • Posted in: Pianotech

    Time to start hoarding nickels before cash is banned. Enough of this coin and cash shortage. I have been to a number of stores that stated you needed exact change to make a purchase. Like I am really going to know what the final bill is after I get the ...

  • Posted in: Pianotech

    A good treatment for rusty tuning pins is a very light application of boiled linseed oil applied to the tops of the pins.  This will creep down the pin a bit, but if it gets into the bushing or pin block it will harden and might even be an advantage.  ...

  • Posted in: Pianotech

    Floyd, How much tail material you need to accomplish your checking goal may vary according to the length of the keystick, plus the radius of the arc and placement of the fulcrum. This checking problem came up some time ago, (I believe you raised the ...

  • Posted in: Pianotech

    Hi Floyd - I'm not familiar enough with Yamaha checking to give you precise numbers... hopefully someone who is will share information with you shortly.  In the meantime, I have a couple of questions: You are addressing two issues: 1) off-set tail facing; ...

  • Posted in: Pianotech

    Keith, Way back when -- the late 70s, early 80s -- George Defebaugh had a line of Japanese hammers he was marketing, "Superior Hammers." They apparently were a Tokiwa product, similar to the Imadegawa (sp?) hammers PianoTek started marketing in the 80s. ...

  • Posted in: Pianotech

    This is a great start to a valuable thread. I suggest that further posts be detailed, and not shy to name hammer manufacturers. I'm sure we can all do this in good taste. Let's keep in mind that often hammers get blamed when bad bellies are at fault, ...

  • Posted in: Pianotech

    A simple way to get the glide studs on a Yamaha grand in the ballpark of where they should be is to use a nickel like a touch block. A nickel is very close to 2mm thick and also functions as a handy government issued decision maker. ------------------------------ ...

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    Hammer tail shape

    Posted in: Pianotech

    My new/old set of Yamaha hammers has the tails already shaped, but the checking surface of the tenor and bass hammers is not perpendicular to the shank.  As I have done before, I will glue some wood into the coving notch to give to give me more leeway ...

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  • Posted in: Pianotech

    Melanie,   Thanks for your help.  I'm trying to get registered into their system but that hasn't completed yet.  I planned on calling to get the direct word but wanted to get some general information first.   Frankly, I wondered if we had a situation ...

  • Posted in: Pianotech

    Regarding treating tuning pins, I had a friend who would treat pins with Neetsfoot Oil to prevent rust. He had an excellent method to keep from over-applying. He had a small jar with a piece of thick felt (3/8's "?) at the bottom which carried the oil, ...