This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Merci bien, Isaac. That's a great idea to stand at the side of the = piano and look at lines reflected in the keytops, to check the final = alignment. I've tried a small laser pointer, too, putting it on the top = few keys and depressing them to align it to the keytops, but it's not = very useful practically. The first high key stops the beam. --Cy Shuster-- Rochester, MN ----- Original Message -----=20 From: Isaac sur Noos=20 To: Pianotech=20 Sent: Monday, October 20, 2003 4:24 PM Subject: RE: Leveling Sticks WAS: Steinway D key levelling (Hamburg = model) CY, Train yourself to insert open paper punchings. The key level was done = once, and unless the actyion is really tired you can level a lot without = having to disassemble the action. Anyway, after having made a leveling with the weights, when you put = everything back in the piano, yoy always have to insert supplement = punching (or compress some others) to have your "perfect" level. The final test is that you shoud see in the keyboard lines reflected = like in a mirror (no scales) For that reason it is important to straighten the front of the ley to = compensate for bushing wear, or decompensate ith the bushing have been = renewed. I don't believe in leveling on the bench, only rough leveling can be = done there. The precise job can only be done with the action in place = and in the piano. By precise job I mean, the height of the keys is consistent, and the = pressure on the bolts is even, andfront and back of the key frame are = bedded. I precut batches of paper punching (Yamaha ones) with my center pin = cutter, and check the level with my rule (eben a short rule is OF for = flat keybeds. Then I eyeball what punchings I will need and I install = them under the front punching felt. Then I take the action at 45=B0 and install those. The black keys are easier to insert from below. While holding the action at 45 =B0 there is enough weight on the keys = to check for holes. You can also check with a light finger the surface of the keys, it is = easy to feel the holes and their size while sliding a finger along the = keys. Take care not to scratch the strecher with the drop screw, mars are = not very decoratives. I just dressed an almost complete Yamaha C3 keyboard this afternoon , = not done since 18 years. Took me 1hour 1/2 whites and sharps. ( but I was not necessary to ad = very thick punchings , only a few 0.15 mm and a few 0.008 mm ones) BTW the correct size for the paper punching is around half of the = thickness of the "hole" with some experience you choose the right amount = immediately. I've not seen how the use a "heavy rule" at the Steinway factory, but = I understand it is an appliable method, as you always have to finish = with the stack screwed. I have on some occasion pre-dressed a keyboard = with my fingers pressure at the back of the keys, not perfect but it = worked.=20 As often, in piano regulation, it is useless to try to attain = perfection at the first pass, unless you fairly know what you are doing = exactly. Working the most in front of the instrument gives you whit time a = better understanding on how things evolve , and an immediate control on = what you are changing. Hope that helps. Regards. Isaac OLEG Isaac OLEG Entretien et r=E9paration de pianos. PianoTech 17 rue de Choisy 94400 VITRY sur SEINE FRANCE tel : 033 01 47 18 06 98 fax : 033 01 47 18 06 90 cell: 06 60 42 58 77=20 -----Message d'origine----- De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De = la part de Cy Shuster Envoy=E9 : lundi 20 octobre 2003 15:11 =C0 : Pianotech Objet : Re: Leveling Sticks WAS: Steinway D key levelling (Hamburg = model) Would a length of chain be heavy enough? A sock full of pennies = (finally, a use for them)? I guess from Ron's comment I should go = search the archives -- sorry to rehash old stuff, but since I'm = learning, it's interesting. --Cy Shuster-- Rochester, MN ----- Original Message -----=20 From: Farrell=20 To: Pianotech=20 Sent: Monday, October 20, 2003 6:56 AM Subject: Re: Leveling Sticks WAS: Steinway D key levelling = (Hamburg model) I had never heard of this idea before now. Interesting. I think I = understand what is being described. A rod packed with loose-fitting = washers. The loose washer allows a key being removed to push up the few = washers at its location without disturbing other washers sitting on = other keys. Right? Where do you lay the washer-rod? Seems like anywhere = forward of the backcheck would be problematic - but then there isn't = much room behind the backcheck....... Additional info would be = appreciated. Terry Farrell ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/0c/8b/5b/0d/attachment.htm ---------------------- multipart/alternative attachment--
This PTG archive page provided courtesy of Moy Piano Service, LLC