Over-Strike vs Under-Strike

[Jeannie Grassi]

Hi Ed,
I've heard it referred to by my mentors as "open string" check and have
continued using that term.  
jeannie

-----Original Message-----
From: ed440 at mindspring.com [mailto:ed440 at mindspring.com] 
Sent: Friday, November 24, 2006 8:12 AM
To: joegarrett at earthlink.net; Pianotech List
Subject: Re: Over-Strike vs Under-Strike

Does "overstrike" just refer to the angle of one part (if so, which part?),
or to a situation in the system?  Does it refer to an absolute ideal or to
the intended design (such as the Bechstein  grand action ca. 1900, which we
might say "was designed to overstrike" if we're talking about the angle of
the shank, but is doing just fine if we're talking about the intended
design).
It's not too late to get together a motion for council to appoint a
committee.

While you're at it, what is the correct technical term for what you are
checking when you lightly touch the hammer to the strings and pluck to see
if all three strings make the same "plink?" Hammer/string contact? Hammer
fit?
String level?

Ed Sutton

-----Original Message-----
>From: Joseph Garrett <joegarrett at earthlink.net>
>Sent: Nov 24, 2006 10:41 AM
>To: pianotech <pianotech at ptg.org>
>Subject: Over-Strike vs Under-Strike
>
>Upon reading the follow-ups of Jons query, I'd like to wonder which is
>which. I've always considered "Over-Strike" as the Downward angle of the
>hammer, which would put the hammer Beyond Perpendicular. ??? Am I correct
>on that? If so, then, "Under-Strike" would be, where the hammer does not
>achieve Perpendicular, on contact?? The "Over-Strike" hammer, (on an
>Upright), would "scruff", (for lack of a better word), downward, at impact.
>The "Under-Stike" hammer would therefore "scruff" upwards.
>Do I have all of this backwards? Confused minds need to know what the
>consensus is.<G>
>
>
>Joseph Garrett, R.P.T.
>Captain, Tool Police
>Squares R I
>
>