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FJV Piano Design
HAMMER ORDERING FORMCompany:
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Rue du Bugnon 35
Brand:STEINWAY § SONSAdress:
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Renens VD 1020
Model:M-170City/State:
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SwitzerlandSerial nb:ZIP:
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info@pianodesign.ch
Year:Country:
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Ph: +41 (0)79 640 0682
Nb Notes:88Phone:
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Nb Sections:4E-mail:
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Language:EnglishDate:16/1/2026
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BassTenorTreble 1Treble 2-1HOW TO FILL THE SPREADSHEET
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Numbers:126275455717288
The dark green cells are auto-fill - they depends on your other datas.
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Notes:A0A#2B2D5D#5G6G#6C8--
First enter your piano datas (Brand, Nodel, etc), especially the number of sections (3, 4 or 5).
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Nb of hammers:
26281717-
Then, put the first and last note number of each section.
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String heights:
199,0190,0
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Angles of boring:
Table 1
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Shank lenght:
Please fill carefully this sheet, as most datas are necessary for the calculation of your new set of hammers.
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This table is mandatory in order to calculate your hammer boring chart (first and last of each section).
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Actual bored lengths:
2
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Actual Rake:
Table 2
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String angles/Key bed:
This line gives you the angle between the strings and the hammer head at strike, with your actual datas, on
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your piano.
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Hammer Total lenght:
3
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Tail lengths:
----------Table 3
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Enter your actual hammerheads total lengths.
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Hammers4
This table calculate the tail length according to your actual total length and your bored length.
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Hammer center-pin height:
146,0 mm
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Table 4
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Enter your hammer center-pin height. This is mandatory.
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Any comment on your datas?
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