[pianotech] Reversing Crown

[George F Emerson]

David,

In manufacturing it is not uncommon to tear down a "bad" new piano in an 
effort to learn what went wrong.

Frank Emerson

----- Original Message ----- 
From: "Porritt, David" <dporritt at mail.smu.edu>
To: <pianotech at ptg.org>
Sent: Thursday, December 24, 2009 12:19 PM
Subject: Re: [pianotech] Reversing Crown


I can't imagine why you would unstring and remove the board on a brand new 
piano unless it just sounded really bad and you were contracted to make it 
un-bad.

dp


David M. Porritt, RPT
dporritt at smu.edu


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf 
Of George F Emerson
Sent: Thursday, December 24, 2009 1:26 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Reversing Crown

I was not there, but a reputable tech told me about this.  He had a NEW
grand piano with positive crown.  The strings were removed and it still had
positive crown.  The soundboard was remove, and it had negative crown!  What
do you make of this?

Frank Emerson