This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Below are all the numbers I currently have for this piano. =20 I will check out everyone's suggestions when I get a chance. Thanks for your input. -Mark Davidson gory details: DW, UW, FRICT,BW, FW, SW 59, 33, 13, 46, 27.3 62, 30, 16, 46, 33.8 58, 35, 11.5, 46.5, 35.3 C1 56, 36, 10, 46, 36.1, 10.9 55, 31, 12, 43, 33.6, 11.2 54, 37, 8.5, 45.5, 34.7 54, 30, 12, 42, 34 52, 34, 9, 43, 36.6 55, 35, 10, 45, 36.2 59, 36, 11.5, 47.5, 28 55, 35, 10, 45, 30.9 55, 32, 11.5, 43.5, 33.7 58, 36, 11, 47, 32.3 53, 28, 12.5, 40.5, 34.2 54, 35, 9.5, 44.5, 33.5 C2 60, 30, 15, 45, 34.5, 11.0 52, 30, 11, 41, 34.6, 11.0 52, 28, 12, 40, 36.1 60, 23, 18.5, 41.5, 33.8 53, 29, 12, 41, 37.9 55, 32, 11.5, 43.5, 33.5 54, 25, 14.5, 39.5, 33.9 57, 32, 12.5, 44.5, 32 53, 28, 12.5, 40.5, 33 56, 33, 11.5, 44.5, 34.2 60, 24, 18, 42, 32.2 58, 34, 12, 46, 28.3 C3 59, 29, 15, 44, 29.4, 10.2 55, 34, 10.5, 44.5, 25.6, 10.4 58, 29, 14.5, 43.5, 27.9 54, 30, 12, 42, 26.7 56, 31, 12.5, 43.5, 24.5 58, 36, 11, 47, 22.5 60, 30, 15, 45, 23.9 51, 37, 7, 44, 23.2 55, 31, 12, 43, 24.5 51, 34, 8.5, 42.5, 27.3 51, 28, 11.5, 39.5, 26 50, 32, 9, 41, 26.2 C4 51, 31, 10, 41, 31.1, 10.5 57, 26, 15.5, 41.5, 27.6, 10.4 50, 32, 9, 41, 31.2 51, 25, 13, 38, 31.2 50, 27, 11.5, 38.5, 32.2 53, 27, 13, 40, 29.3 51, 28, 11.5, 39.5, 27.6 51, 33, 9, 42, 24.8 51, 33, 9, 42, 25.1 52, 34, 9, 43, 25.2 49, 30, 9.5, 39.5, 24.9 47, 30, 8.5, 38.5, 28.7 C5 48, 36, 6, 42, 26.1, 9.9 55, 23, 16, 39, 27.5, 9.8 48, 30, 9, 39, 25.2 51, 29, 11, 40, 24.2 51, 27, 12, 39, 27.3 47, 34, 6.5, 40.5, 23.9 51, 32, 9.5, 41.5, 20.2 49, 32, 8.5, 40.5, 24 54, 31, 11.5, 42.5, 23.9 49, 32, 8.5, 40.5, 26.1 49, 24, 12.5, 36.5, 24.8 53, 29, 12, 41, 24.7 C6 46, 30, 8, 38, 23.7, 9.0 59, 25, 17, 42, 20, 8.8 51, 33, 9, 42, 18.8 52, 33, 9.5, 42.5, 15.2 56, 36, 10, 46, 17.5 53, 33, 10, 43, 17.6 53, 34, 9.5, 43.5, 16.9 58, 31, 13.5, 44.5, 17.1 53, 36, 8.5, 44.5, 11 52, 34, 9, 43, 16.8 49, 31, 9, 40, 15.7 55, 29, 13, 42, 16.4 C7 50, 36, 7, 43, 12.4, 7.7 54, 30, 12, 42, 11.1, 7.6 47, 34, 6.5, 40.5, 13.9 51, 32, 9.5, 41.5, 11.4 49, 35, 7, 42, 9.9 50, 37, 6.5, 43.5, 7.6 54, 37, 8.5, 45.5, 6.7 50, 37, 6.5, 43.5, 7.7 52, 33, 9.5, 42.5, 6.1 49, 37, 6, 43, 6.4 50, 33, 8.5, 41.5, 6.6 50, 35, 7.5, 42.5, 6.3 C8 47, 33, 7, 40, 6.5, 6.0 =20 ----- Original Message -----=20 From: David Love=20 To: pianotech@ptg.org ; Mark Davidson=20 Sent: Sunday, June 01, 2003 10:00 AM Subject: RE: 1999 Steinway L with heavy action It appears that the SBR (leverage) is a bit high in this piano. You = need to provide a bit more information but it seems to average = approximately 6.2. My guess is that the knuckle position is 16mm and it = should be 17 mm. That would lower the ratio to approximately 5.8 = (average) and would be sufficient to lift the existing hammer weight = without excessive front weighting. Depending on the situation I would = consider moving the knuckle. Since you didn't provide upweight and = downweight information, I don't know what the friction component is. = But moving from a 16 - 17mm knuckle will also lower the friction a bit. = You might also check the capstan line. Measure the key ratio in the = bass as well as the treble to see if the key ratio changes through the = piano. Another possibility is to move the capstan line forward in order = to achieve a uniform key ratio and reduce the leverage to the necessary = level at the same time. I wouldn't take any weight off the hammers, = they are not that heavy to begin with. =20 David Love davidlovepianos@earthlink.net ----- Original Message -----=20 From: Mark Davidson=20 To: pianotech@ptg.org Sent: 6/1/2003 6:10:44 AM=20 Subject: 1999 Steinway L with heavy action I have a 1999 Steinway L with rather heavy action I am looking to = correct. Friction has been taken care of (was originally 20-30 grams - now = 10-15). Action has been fully regulated which also improved it considerably. Here are some numbers: Balance weight ranges from 38-51g, average about 44. Strike weights are medium in the bass crossing over to heavy in the = tenor. note BW FW SW C1 46 36 10.9 C2 45 34 11 C3 44 29 10.3 C4 41 32 10.5 C5 42 26 9.8 C6 38 24 9 C7 43 12 7.6 C8 40 7 6 So I am considering the following: 1. relead keys to bring balance weight to 38g 2. (1) plus move lead closer to balance rail to prevent slower = repetition 3. lighten hammers from tenor up (remove felt? drill mouldings? = maybe some of each - could use filing anyway) (piano is in a 10X13 room with hardwood floors so a smaller sound = would not be an issue) 4. turbo wippen (either leave leads alone or remove some to make = unsprung BW around 50 - how much are these things $$). 5. some combination of above Recommendations? -Mark Davidson ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/a3/d4/69/07/attachment.htm ---------------------- multipart/alternative attachment--
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