Welcome to the Piano World Piano Forums
Over 2 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

Gifts and supplies for the musician

SEARCH
the Forums & Piano World

Trying Something New with Search
(ad)
Pearl River
Pearl River Pianos
(ad) Pianoteq
(ad) Lindeblad Piano
Lindeblad Piano Restoration
(ad) P B Guide
Acoustic & Digital Piano Guide
Who's Online
126 registered (ABC Vermonter, anrpiano, adrienschmitt, accordeur, AndersJ, 36 invisible), 1288 Guests and 7 Spiders online.
Key: Admin, Global Mod, Mod
(ad) Estonia Piano
Estonia Pianos
Quick Links to Useful Piano & Music Resources
Our Classified Ads
Find Piano Professionals-

*Piano Dealers - Piano Stores
*Piano Tuners
*Piano Teachers
*Piano Movers
*Piano Restorations
*Piano Manufacturers
*Organs

Quick Links:
*Advertise On Piano World
*Free Piano Newsletter
*Online Piano Recitals
*Piano Recitals Index
*Piano & Music Accessories
*Live Piano Venues
*Music School Listings
* Buying a Piano
*Buying A Acoustic Piano
*Buying a Digital Piano
*Pianos for Sale
*Sell Your Piano
*How Old is My Piano?
*Piano Books
*Piano Art, Pictures, & Posters
*Directory/Site Map
*Contest
*Links
*Virtual Piano
*Music Word Search
*Piano Screen Saver
*Piano Videos
*Virtual Piano Chords
Topic Options
#1182140 - 04/17/09 10:21 AM Stupid question about damper felt design...
Little_Blue_Engine Offline
1000 Post Club Member

Registered: 03/30/09
Posts: 1258
Loc: Ohio, US
I've been replacing the worn damper felt on my upright a little at a time and was wondering why the bass dampers normally have two shorter wedges of felt instead of one longer one. I don't mean my piano individually, just uprights in general. Are two smaller pieces more effective at stopping the vibrations than one large one? If so is it because two smaller pieces are better able slide into place and "cuddle up" with the strings better than one large piece? Or is it because the strings are being touched in more than one place? Combinatin of both? Does the distance between the two wedges make a difference (I noticed my dampers are slightly longer than newer pre-made dampers) or are minor variations in length in an older piano just the result of less standardization in piano design between different manufacturers? As I mentioned, not asking about my specific piano and I'm not trying to redesign anything either. I'm just curious.
_________________________
I'll figure it out eventually.
Until then you may want to keep a safe distance.


Top
(ad 568) PTG Convention Norfolk
PTG Convention Norfolk
#1182150 - 04/17/09 10:37 AM Re: Stupid question about damper felt design... [Re: Little_Blue_Engine]
JDelmore Offline
500 Post Club Member

Registered: 04/10/07
Posts: 634
The vibrational nodes of the longer strings are further apart than on shorter ones. If the dampers worked well before, you should replace them exactly. If there were problems, i.e. odd harmonic ringing, that can be addressed, sometimes with "outrigger" dampers.
_________________________
PTG Associate Member

"There is always room above; there is only the ground below."....F.E. Morton (with props to Del F.)

Top
#1182181 - 04/17/09 11:38 AM Re: Stupid question about damper felt design... [Re: JDelmore]
BDB Online   content
Yikes! 10000 Post Club Member

Registered: 06/07/03
Posts: 23774
Loc: Oakland
The wedges are short for the same reason the treble felt is compressed in the center: they make less noise when they touch the string.

I would not worry about slight differences in the size of the dampers. Manufacturers used what was available from their suppliers, too.
_________________________
Semipro Tech

Top
#1182201 - 04/17/09 11:58 AM Re: Stupid question about damper felt design... [Re: BDB]
Silverwood Pianos Offline
4000 Post Club Member

Registered: 03/10/08
Posts: 4263
Loc: Vancouver B. C. Canada


You can obtain longer dampers if you require them. Most of the generic replacements for older uprights are not as long as the originals.

I just had a problem with a very strong Heintzman (volume) and the regular generic replacements were not satisfactory. Too much bleed through, so I got these from Germany with the assistance of Jurgen Goering at Pianoforte Supply…..see photo….

http://picasaweb.google.com/silverwoodpi...689136902701410
_________________________
Dan Silverwood
www.silverwoodpianos.com
http://silverwoodpianos.blogspot.com/
http://www.facebook.com/SilverwoodPianosDotCom
"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur."

Top
(ad)
Piano & Music Accessories
piano accessories music gifts tuning and moving equipment
#1182343 - 04/17/09 03:46 PM Re: Stupid question about damper felt design... [Re: Silverwood Pianos]
Little_Blue_Engine Offline
1000 Post Club Member

Registered: 03/30/09
Posts: 1258
Loc: Ohio, US
I like those triple wedged dampers! I've learned from experience working on old houses that sometimes things are done differently for a reason, even if it's not obvious. Mess with it too much and you find out the reason real quick eekso when I noticed the length difference I decided to use the origional dampers and just put new felt on them even though it takes more time and doesn't have that "shiny new" look. They're just long enough that a third wedge would fit in the middle with some space around it and I actually thought about doing that when I was working on them last night but wasn't sure if I should. I may go back and add a third wedge to a few of them and see what kind of difference it makes.
_________________________
I'll figure it out eventually.
Until then you may want to keep a safe distance.


Top
#1182346 - 04/17/09 03:48 PM Re: Stupid question about damper felt design... [Re: Little_Blue_Engine]
BDB Online   content
Yikes! 10000 Post Club Member

Registered: 06/07/03
Posts: 23774
Loc: Oakland
If you want more damping, adding weight to the damper block would probably do more than adding more felt. But be certain that is what you want. Too much damping makes the piano sound dry.
_________________________
Semipro Tech

Top

Moderator:  Piano World 
What's Hot!!
Why It's Impossible to Tune a Piano!
aka, why you should be nice to your tuner.
--------------------
Posting Pictures on the Forums
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

-------------------
Piano Classified Ads
Piano Acc. & Gift Items in
Piano World's Online Store
In PianoSupplies.com ,(a division of Piano World) our online store for piano and music gifts and accessories, party goods, tuning equipment, piano moving equipment, benches, lamps Caster Cups and more.


Free Shipping on Jansen Artist Piano Benches
(ad)
Hammond A100 for Sale!
PRICE DROPPED!
(Think B3)
Hammond A100 for sale!
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
(ad 125)
Sweetwater $55,000 Giveaway
Sweetwater $55,000 Mic Locker Giveaway
(ads)
PD - WNG - MH
PianoDisc
New Topics - Multiple Forums
Moving to ABRSM syllabus from Piano Adventures?
by TrevorM
05/28/16 10:28 AM
Overlapping arpeggios in Chopin's etude in A flat Op 25 No 1
by AndersJ
05/28/16 10:16 AM
I really want to learn the piano..where on earth do I start?
by Cozzie
05/28/16 09:32 AM
USB Cable influence?
by stamkorg
05/28/16 09:24 AM
Help fixing static noise on Roland FP8
by pete3
05/28/16 08:34 AM
Forum Stats
83,794 Registered Members
44 Forums
172,987 Topics
2,528,602 Posts

Most users ever online: 15,252 @ 03/21/10 11:39 PM
Sheet Music Plus (125)
Sheet Music Plus Featured Sale

Visit our online store for gifts for music lovers

 
Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
 
Our Piano Related Classified Ads
|
Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World | Donate | Link to Us | Classifieds |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | Press Room |


copyright 1997 - 2016 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission