[pianotech] SnS rim screws

[Al Guecia/Allied PianoCraft]

Joe Gross wrote: 

Cut to the chase: We tightened the bolts  with a socket. Crown is back in the mid section where it was flat. Sustain 8 seconds.


Del, I don't think it was relative humidity change in this case. As I read it, it was an immediate change.

Al -
High Point, NC



On Jul 3, 2011, at 9:51 AM, Delwin D Fandrich wrote:

> It’s more likely the relative humidity around the piano has changed thus changing the moisture content in the board thus changing the amount of crown. Happens all the time when humidity levels changes.
>  
> ddf
>  
> Delwin D Fandrich
> Piano Design & Fabrication
> 6939 Foothill Court SW, Olympia, Washington 98512 USA
> Phone  360.515.0119 — Cell  360.388.6525
> del at fandrichpiano.com — ddfandrich at gmail.com
>  
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Al Guecia/Allied PianoCraft
> Sent: Sunday, July 03, 2011 5:33 AM
> To: pianotech at ptg.org
> Subject: Re: [pianotech] SnS rim screws
>  
> Joe, it could then be possible that the plate was up off the supports and when you tighten the plate bolts you got the plate down onto the supports and thus the improved tone and down bearing.
>  
> Al -
> High Point, NC

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