ROFLOL? Translate? Cheers, Paul "If you want to know the truth, stop having opinions" (Chinese fortune cookie) In a message dated 08/08/07 18:21:33 Central Daylight Time, deanmay at pianorebuilders.com writes: ROFLOL 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: Wednesday, August 08, 2007 5:55 PM To: Pianotech List Subject: Re: Counter-bearing drag 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 :-). Paul "If you want to know the truth, stop having opinions" (Chinese fortune cookie) In a message dated 08/08/07 08:55:32 Central Daylight Time, deanmay at pianorebuilders.com writes: 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. 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 Hey, Dean, another myth rears it head... 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. Paul "If you want to know the truth, stop having opinions" (Chinese fortune cookie) In a message dated 08/07/07 22:02:01 Central Daylight Time, deanmay at pianorebuilders.com writes: My understanding is from a chemical standpoint steel on brass is self lubricating. 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 Ahh, kinda late in the thread, but I've been thinking...oh no! 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: 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? Thanks for any thoughts... Jude Reveley, RPT Absolute Piano Restoration, LLC Lowell, Massachusetts (978) 323-4545 -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20070808/642eaf0d/attachment.html
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