Counter-bearing drag

[John Formsma]

Rolling On The Floor Laughing Out Loud

DAMHIK
FYI
FWIW
TTFN

;-))

JF

On 8/8/07, PAULREVENKOJONES <paulrevenkojones at aol.com> wrote:
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> ROFLOL? Translate?
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> Cheers,
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> Paul
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> "If you want to know the truth, stop having opinions" (Chinese fortune
> cookie)
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> In a message dated 08/08/07 18:21:33 Central Daylight Time,
> deanmay at pianorebuilders.com writes:
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> ROFLOL
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> Dean
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> Dean May             cell 812.239.3359
>
> PianoRebuilders.com   812.235.5272
>
> Terre Haute IN  47802
>
>  ________________________________
>
>
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
> Of PAULREVENKOJONES
> Sent: Wednesday, August 08, 2007 5:55 PM
> To: Pianotech List
> Subject: Re: Counter-bearing drag
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> It's the mythology to which I referred. Language does strange things as we
> both know. Since we, as a group, tend to be technicians and not engineers,
> our language tends to be self-lubricating :-).
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> Paul
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>
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> "If you want to know the truth, stop having opinions" (Chinese fortune
> cookie)
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> In a message dated 08/08/07 08:55:32 Central Daylight Time,
> deanmay at pianorebuilders.com writes:
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> VERB:Inflected forms: lu·bri·cat·ed, lu·bri·cat·ing,
> lu·bri·cates
> TRANSITIVE VERB:1. To apply a lubricant to. 2. To make slippery or smooth.
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> It is of course the second definition to which I was referring. On a
> molecular level the interaction of some metals against each other produces
> an above normal amount of friction, while others, e.g., steel on brass,
> produce a friction level below what one would normally expect. Their
> interaction is more slippery or smooth than that of other metals, i.e.,
> self-lubricating. No oil required.
>
>
>
>
> Dean
>
> Dean May             cell 812.239.3359
>
> PianoRebuilders.com   812.235.5272
>
> Terre Haute IN  47802
>
>  ________________________________
>
>
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
> Of PAULREVENKOJONES
> Sent: Tuesday, August 07, 2007 11:39 PM
> To: Pianotech List
> Subject: Re: Counter-bearing drag
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> Hey, Dean, another myth rears it head...
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> Brass, steel, and cast iron have quite different coefficients of friction
> because of the way that the surface "galls" or wears down under compression
> and the movement of one surface against another. What you're referring to as
> "lubricating" is just a way of describing the friction differentials between
> the materials. There's no oil, or lubricity, involved.
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> Paul
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> "If you want to know the truth, stop having opinions" (Chinese fortune
> cookie)
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> In a message dated 08/07/07 22:02:01 Central Daylight Time,
> deanmay at pianorebuilders.com writes:
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> My understanding is from a chemical standpoint steel on brass is self
> lubricating.
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>
>
>
> Dean
>
> Dean May             cell 812.239.3359
>
> PianoRebuilders.com   812.235.5272
>
> Terre Haute IN  47802
>
>  ________________________________
>
>
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
> Of Jude Reveley/Absolute Piano
> Sent: Tuesday, August 07, 2007 10:10 PM
> To: pianotech at ptg.org
> Subject: Counter-bearing drag
>
>
>
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> Ahh, kinda late in the thread, but I've been thinking...oh no!
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> I'm looking to upgrade my string terminations on my rebuilds too like so
> many of you cool guys and gals so my questions are:
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> How do bend your half rounds to conform to any required sweep? Clamp in a
> form?
> Why brass? It is so soft, will get marred by the strings and eventually
> tarnish?  Why not anondized aluminum or titanium? If it's a question of
> economics, shouldn't we at least plate the brass?
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> Thanks for any thoughts...
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> Jude Reveley, RPT
> Absolute Piano Restoration, LLC
> Lowell, Massachusetts
> (978) 323-4545
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