[CAUT] Erard piano

[Joe And Penny Goss]

Hi Wim,
Sounds like something Newton Hunt would do <G>
No harm asking.
Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: <wimblees at aol.com>
To: <caut at ptg.org>
Sent: Monday, May 29, 2006 12:38 PM
Subject: Re: [CAUT] Erard piano


> Thanks Ed, for this information. Unfortunately, although this all makes 
> sense to a piano technician, this guy is a piano player, and all he 
> wants is someone to do the work. But he needed some specs to tell the 
> technician what is right. Apparently he can't find someone in his area 
> that is capable of doing this. (Maybe I can ask him if he'll fly me 
> over there to do the work) :)
> 
> Wim
> 
> -----Original Message-----
> From: A440A at aol.com
> To: caut at ptg.org
> Sent: Mon, 29 May 2006 14:20:52 EDT
> Subject: Re: [CAUT] Erard piano
> 
> << > My problem is that I cannot find an expert who will give me the
> correct > factory hammer blow distance and factory key depth, as well
> as damper > regulation.<<
> 
> You can find the proper keydip by understanding that the sharps must 
> not
> go farther than approx. 1 mm above the tops of the naturals when 
> depressed,
> and they cannot be above 13 mm above the naturals when at rest. This is 
> your
> range of keydip. The hammers must not lie on the rest rail, nor be more 
> than 5
> mm above it. This is your hammer range. Let-off can be set at 1 mm 
> throughout
> the scale for a beginning specification. You should then be able to 
> find a
> comfortable set of specs that are tailored to the performers sense of 
> touch by
> varying the amount of aftertouch. ie. if you want to reduce the 
> aftertouch to
> a minumum, (which will be the fastest action), lower your hammers or 
> raise
> your keydip, or a little of both. You may then want to set your let-off 
> to just
> 
> below the lower excursion limit of the string when the string has been 
> struck
> as firmly as the performer is likely to play it. The drop should leave 
> the
> hammer at exactly the same height as let-off. Springs should be as 
> strong as
> possible without being felt in the key upon hammer release.
> The knuckle should be in contact with the top of the jack, but no more 
> than
> that. The distal edge of the jack should be even with the distal edge 
> of the
> knuckle core.
> The dampers should begin to lift when the hammer is halfway to the
> string.
> 
> Ed Foote RPT
> http://www.uk-piano.org/edfoote/index.html
> www.uk-piano.org/edfoote/well_tempered_piano.html