Richard, Being so close to being able to do a support spring retrofit, I would be inclined to put springs in the rest of the whips, giving me the opportunity to get rid of excess key lead mass, be able to put the mass where I want it (the hammer), and get more control of balance weight (this before studying your spreadsheet...). I am guessing the whips are ready, just need the springs and flanges/cord, which Renner might be talked out of, especially if you need several sets. Bill Shull In a message dated 9/6/01 7:03:26 AM Pacific Daylight Time, rbrekne@broadpark.no writes: << Am getting ready to install a new set of hammers on this puppy. And have gotten into the habit of taking 15 or so samples and checking out the results ala Stanwood. This is a roughly 7 foot Seiler Grand. There are whippen assist springs in the bass, but no where else, which accounts for the abrut shift in weights starting at key 23 which is the lowest tenor. Otherwise lots of friction, slow hammer centers are at least partially to blame. Some very er.... interesting FW's which mirror other problems. This ones going to be fun me thinks. I will probably be installing a SW curve starting at a weight of about 12 grams in the bass and remove the whippen assist springs since there are only 22 of them on the piano. I also want to in general lighten up as this is in a studio and a big hall sound isnt really appropriate. Although I suppose I need to be carefull cuz the room is has very damped acoustics what with carpets and such all over the place. Comments and advice are extremely welcome. I will be doing 6 sets this fall so its a great chance to get lots of experience in this approach to hammer installation and re-weighting of the keys. -- Richard Brekne RPT, N.P.T.F. Bergen, Norway mailto:rbrekne@broadpark.no Key # KR WRW WBW SW UW DW BW F FW SBW TBW R 1 0,52 20,80 10,82 14,20 52,00 81,00 66,50 14,50 23,30 78,98 89,80 5,56 15 0,52 21,20 11,02 13,20 49,00 81,00 65,00 16,00 22,20 76,18 87,20 5,77 21 0,52 20,80 10,82 12,80 54,00 85,00 69,50 15,50 14,10 72,78 83,60 5,69 22 0,53 21,00 11,13 12,60 46,00 90,00 68,00 22,00 19,90 76,77 87,90 6,09 23 0,52 21,00 10,92 11,10 20,00 52,00 36,00 16,00 38,40 63,48 74,40 5,72 40 0,52 21,00 10,92 11,30 20,00 46,00 33,00 13,00 42,60 64,68 75,60 5,72 49 0,53 20,80 11,02 9,70 18,00 50,00 34,00 16,00 32,40 55,38 66,40 5,71 50 0,53 21,40 11,34 10,00 17,00 46,00 31,50 14,50 39,40 59,56 70,90 5,96 51 0,52 21,10 10,97 9,70 24,00 54,00 39,00 15,00 31,10 59,13 70,10 6,10 61 0,52 21,00 10,92 8,80 16,00 58,00 37,00 21,00 26,50 52,58 63,50 5,98 69 0,52 21,60 11,23 8,80 24,00 51,00 37,50 13,50 25,30 51,57 62,80 5,86 70 0,53 21,40 11,34 9,00 22,00 51,00 36,50 14,50 29,70 54,86 66,20 6,10 71 0,52 21,40 11,13 8,70 21,00 54,00 37,50 16,50 21,80 48,17 59,30 5,54 80 0,52 21,60 11,23 7,40 25,00 51,00 38,00 13,00 15,50 42,27 53,50 5,71 88 0,52 20,80 10,82 7,10 24,00 58,00 41,00 17,00 12,10 42,28 53,10 5,96 >>
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