Upweight Maximums

[David Love]

I don't see how high upweights will make the action feel lighter.  The case
you describe has BW at 50.  Friction of 8-10 grams is not likely in the
lower end of the piano unless the pinning is really loose.  So that would
put downweights in the 60 - 65 range.  Too much for my liking.  

David Love
davidlovepianos@earthlink.net


> [Original Message]
> From: Richard Brekne <Richard.Brekne@grieg.uib.no>
> To: PTG <pianotech@ptg.org>
> Date: 4/6/2003 1:18:36 PM
> Subject: Upweight Maximums
>
>
> Hi guys,
>
> A recent email presented to me a thought I have not really considered
> before and I thought I would throw it out to you all to hear your
> thoughts.
>
> The "heaviness" of the action and the explanations for this is something
> that is continually up for discussion, and I was newly presented with
> the idea that one should try and configure actions so that static Up
> Weights end up somewhere in the low 40 gram weight range, with friction
> weights around 8 to 10.  In addition, and action should not have any
> assistance from springs, magnets or any other such contrivance to play
> into the counter balance question.
>
> This means, as far as I can tell, that this technician is looking for
> rather heavy downweights, which is indeed her stated preference. But her
> reasoning for this is interesting. It is her position that this
> configuration will feel lighter then any configuration possible that has
> Up Weights significantly below the levels she specifies.
>
> So.... I'd love to hear some thoughts on the matter.
>
> Cheers
>
> RicB
>
> --
> Richard Brekne
> RPT, N.P.T.F.
> UiB, Bergen, Norway
> mailto:rbrekne@broadpark.no
> http://home.broadpark.no/~rbrekne/ricmain.html
>
>
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