Jack to knuckle position

[Dean May]

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Functionally, the jack only needs to clear the knuckle. A little extra =
clearance is insurance for the cloud passing overhead, moon phase =
changes, etc. If it is a piano that is going to be closely maintained =
you can get away with setting minimal after touch.=20
=20
So you were part of a mechanical design group. Me too. I was a product =
engineer for a construction equipment mfr. for 8 years back in the early =
eighties. Started working on pianos as a hobby and it grew into a part =
time business. When they shut down the plant where I was working in '87 =
I went full time and haven't looked back. I love it. You'll do fine.
=20
Dean
=20
Dean May             cell 812.239.3359
PianoRebuilders.com   812.235.5272
Terre Haute IN  47802
=20
-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On =
Behalf Of Alpha88x@aol.com
Sent: Monday, March 29, 2004 8:10 AM
To: pianotech@ptg.org
Subject: Jack to knuckle position=20
=20
Greeetings,


                 When the keystroke of a grand piano key is complete, =
how far front should the jack's final position be in relationship to the =
knuckle?  I know it shouldnt be as far front as to have it buried in the =
stop felt at the end of the rep lever or too far back either.=20

rookie
Julia Gottchall
Reading, PA

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