[CAUT] strange rib damage

[Jim Busby]

Hi Conrad,

I ditto that experience. An upright. Clearly a footprint on the other side. I'm sure a small crack, too much pressure of some kind, etc. could have been the issue in another piano, but that looks just like what we had in not one, but two places. 

Jim
________________________________________
From: caut-bounces at ptg.org [caut-bounces at ptg.org] On Behalf Of Conrad Hoffsommer [choffsommer at hotmail.com]
Sent: Wednesday, December 08, 2010 5:25 AM
To: caut
Subject: Re: [CAUT] strange rib damage

The only time I've seen something similar, there was a footprint on the soundboard... ;-{
(not mine)

Conrad Hoffsommer




________________________________
From: PAULREVENKOJONES at aol.com
Date: Wed, 8 Dec 2010 00:25:22 -0500
To: caut at ptg.org
Subject: Re: [CAUT] strange rib damage

Two instances of the same very rare phenomenon? An undetected crack when built? Seems unlikely to me.

Perhaps a misplaced clamp during construction? As well as asking a lot of sugar pine? Seems more likely to me.

Mysteries. God I love this profession.

Paul

In a message dated 12/7/2010 7:12:06 P.M. Central Standard Time, rnossaman at cox.net writes:
I've seen it, usually accompanied by 3° treble bearing. I figured it was
an undetected crack when the board was built, compounded by asking a lot
structurally of sugar pine ribs.