---------------------- multipart/alternative attachment In a message dated 1/4/2003 12:07:50 AM Pacific Standard Time, pianobuilders@olynet.com writes: > Subj: Re: Restored Baldwin out the door > Date: 1/4/2003 12:07:50 AM Pacific Standard Time > From: <A HREF="mailto:pianobuilders@olynet.com">pianobuilders@olynet.com</A> > Reply-to: <A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> > To: <A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> > Sent from the Internet > > > > > >> ----- Original Message ----- >> From: <A HREF="mailto:Erwinspiano@aol.com">Erwinspiano@aol.com</A> >> To: <A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> >> Sent: January 03, 2003 3:55 PM >> Subject: Restored Baldwin out the door >> >> I had the pleasure of making the Baldwin client cry today... >> that is with joy. Her 90 year old mother wass there to see and hear the >> piano she'd suffered with teaching piano lessons low those 25 years. I was >> very gratified & honored at the response. Interesting post Del as I believe this model is the Balwin C model you mention in the post at the bottom of this one. Shocked may have been the wrong choice of words describing the shallow rib depth but ribs 1 thru 4 were 24mm wide and 14,15.5,18,&18mm deep. compared to the Baldwin R model(same length 5ft. 8") 18,21,22,24mm. Same width. I beefed up the bottom 7 ribs in depth. Baldwin R depth BaldwinC depth rib depth original Rib depth new depth rib length C 1 18 mm 14 mm 17mm 23 inches 2 21 15.5 18.5 31 3 22 18 22 40 4 24 18 23 46 5 24 18 25 49 6 24 19.5 26 42 7 24 19.5 24 34 8 19 23 23 27 9 19 21 21 22 10 17 19 19 18 11 16 17.5 18 15 12 no rib 15.5 16 11 As you can see the original depth of the last five ribs on the C were already stiffer than the Rs. The first 8 ribs were crowned to a 60 ft radius and the last four at a 2 by 50 and 2 forty ft. It's a very good rib scale with excellent response. Board emc 6% at time of ribbing. >340 thick Sitka panel thinned at the edges except treble. Please use it if you wish. Regards Dale Erwin > >> >> List >> Tomorrow I'm delivering a 1920 pre-model R Baldwin. It's 5 ft. 8 " >> I just thought some would enjoy a thought or two on this. This is the >> first Baldwin I've had the opportunity to do a complete restoration on >> including new belly and all. Although I'm not a big Baldwin fan I am very >> pleased with the way this piano came out. Tonally it's very strong, and >> dark sounding with excellent sustain characteristics. Very even scale note >> to note& no weak spots or notes. This board had/has eleven ribs compared >> to a modern Rs 10 heavier built ribs. The original ribbing was really to >> light especially in the bottom end. Like 15/16 mm deep on the first 3 or >> ribs. I beefed them up. I use tight sugar pine thru out on a Sitka panel. >> I was shocked to think that Baldwin Designers had any idea that ribs that >> thin would retain any kind of real crown for more than two weeks. Dale Erwin > Del writes > Why should you be so shocked? In a compression-crowned soundboard assembly > the ribs actually resist the formation of crown and of necessity must be > flexible enough to bend as the board expands. The ribs on > compression-crowned soundboards are almost always wider than they are tall > -- though this is some shallow even for an early c-c board. > > I'm guessing that they were trying to reduce the stiffness of the > soundboard assembly to give it somewhat better mobility in response to the > larger movement required to develop good articulation in the bass. > > ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/b3/00/64/3e/attachment.htm ---------------------- multipart/alternative attachment--
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