[pianotech] new board evaluation

[erwinspiano at aol.com]

Hi Gene
? Upon installation it is always the bass & the treble?which are forced down?upon installation and ?It doesn't seem to deter there performance. Or at least I've not experienced that. I know it's a bit disconcerting the first few times you do this. But it was done that way originally & there is no good reason to alter it in my opinion. If you press the bridge to the board on a curved deck you will minimize this and many of worlds famous pianos do it this was. Probably to minimize the down force issue or perhaps some marketing issue such as double crowned soundboards. Many subscribe to this. Stwy, Steingraebber etc.
? Dale


-----Original Message-----
From: Gene Nelson <nelsong at intune88.com>
To: pianotech at ptg.org
Sent: Sun, 7 Dec 2008 4:44 pm
Subject: Re: [pianotech] new board evaluation


?
> I'm curious to know more about why the rim needed to be built up. Why do?
> you that part of the board wouldn't go down very well??
I could have forced the board down with clamps at glue up I suppose, but I thought that doing this would greatly contribute to its stiffness. Also, in order to set bearing I needed to have the board down on the rim all the way around. Clamps were not an option with the plate in so I used screws. The screws would have split the board if I tried to use them to pull the board down.?
If I had my way I would have cut off the board at the first bass rib and it would not have been an issue.?
Gene ?

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