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!

SEARCH
the Forums & Piano World

This custom search works much better than the built in one and allows searching older posts.
(ad) Pianoteq
Latest Pianoteq add-on instrument: U4 upright piano
(ad) Pearl River
Pearl River Pianos
(ad) P B Guide
Acoustic & Digital Piano Guide
PianoSupplies.com (150)
Piano Accessories Music Related Gifts Piano Tuning Equipment Piano Moving Equipment
We now offer Gift Certificates in our online store!
(ad) Estonia Piano
Estonia Piano
Quick Links to Useful Stuff
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 Accessories
* 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
#2116871 - 07/13/13 06:36 AM Yamaha C7 hammer boring angles
mariotto Offline
Full Member

Registered: 05/19/12
Posts: 56
Loc: EU
Does anyone perhaps have the hammer boring angles for Yamaha c7, year 1974, model with 23 bass?

Top
(ad 568) Win a Year Journal Subscription
Win a year subscription to the PTG Journal
#2116933 - 07/13/13 10:51 AM Re: Yamaha C7 hammer boring angles [Re: mariotto]
kpembrook Offline
1000 Post Club Member

Registered: 04/06/10
Posts: 1252
Loc: Michigan
No, but your piano will tell you.
_________________________
Keith Akins, RPT
USA Distributor for Isaac Cadenza hammers and Profundo Bass Strings
Supporting Piano Owners D-I-Y piano tuning and repair

Top
#2116937 - 07/13/13 11:05 AM Re: Yamaha C7 hammer boring angles [Re: mariotto]
mariotto Offline
Full Member

Registered: 05/19/12
Posts: 56
Loc: EU
Yes I know smile It is a long story.... It will cost me another two weeks to complete my order, until I will be able to measure it myself...

Top
#2116956 - 07/13/13 11:49 AM Re: Yamaha C7 hammer boring angles [Re: mariotto]
Ed McMorrow, RPT Offline
1000 Post Club Member

Registered: 12/09/12
Posts: 1463
Loc: Seattle, WA USA
Probably better to wait and get the specs from the piano. You never know some on-line rascal could give you wrong specs on purpose.
_________________________
In a seemingly infinite universe-infinite human creativity is-seemingly possible

Top
#2116959 - 07/13/13 11:54 AM Re: Yamaha C7 hammer boring angles [Re: mariotto]
Olek Online   content
6000 Post Club Member

Registered: 03/14/08
Posts: 6351
Loc: France
Hello, you can use a "standard" bore order on a piano that size.

the concern could eventually that the bore proposed have too strong angles, (often they angle up to note 65 while it is not always necessary) the other way around is not really a concern.

Hammers are all the same dimension so that part is easy.

You could also use a picture from above to have an idea of the angles. they can be a little less pronounced than originally, that will help with travelling and other things.

I am unsure but seem to recall 10>11 gon for basses and 110- even 108) to 100 grad for the first medium section.


Edited by Olek (07/13/13 01:13 PM)
_________________________
Isaac OLEG - http://picasaweb.google.fr/PianoOleg pro

Top
#2116978 - 07/13/13 12:56 PM Re: Yamaha C7 hammer boring angles [Re: mariotto]
pianolive Offline
Full Member

Registered: 09/09/11
Posts: 319
Loc: Europe
You could also send samples to the hammer maker. First and last hammer from each section including tha shanks.

Top
#2116997 - 07/13/13 01:30 PM Re: Yamaha C7 hammer boring angles [Re: mariotto]
BDB Offline
Yikes! 10000 Post Club Member

Registered: 06/07/03
Posts: 20749
Loc: Oakland
Or you could ask the supplier.
_________________________
Semipro Tech

Top
#2117049 - 07/13/13 03:13 PM Re: Yamaha C7 hammer boring angles [Re: mariotto]
Olek Online   content
6000 Post Club Member

Registered: 03/14/08
Posts: 6351
Loc: France
I asked a lot of time and never was given any boring data by my supplier, even "standard" boring (which is common for uprights)

Secrecy ! It could be easy to measure so I dont understand the point and it is not easy to understand the refernces of pre bored heads then.
_________________________
Isaac OLEG - http://picasaweb.google.fr/PianoOleg pro

Top
#2117097 - 07/13/13 04:55 PM Re: Yamaha C7 hammer boring angles [Re: mariotto]
mariotto Offline
Full Member

Registered: 05/19/12
Posts: 56
Loc: EU
Yes I asked too. Interesting, I was given an offer for Yamaha bored and glued to shank hammer set for the model, but it is too expencive to me. So, there are somewhere the proper measures. I assume by Yamaha is like by Steinway, for all models it is possible to have all the data, or not? Steinway also offers preglued hammers to shank if you give them the serial number of the piano. I thought there is something similar for Yamaha. Never mind I will wait until I get home and take the proper measurement.

Top
#2117390 - 07/14/13 07:12 AM Re: Yamaha C7 hammer boring angles [Re: Ed McMorrow, RPT]
David Jenson Offline
1000 Post Club Member

Registered: 10/22/06
Posts: 1947
Loc: Maine
Originally Posted By: Ed McMorrow, RPT
Probably better to wait and get the specs from the piano. You never know some on-line rascal could give you wrong specs on purpose.
Drat! 'Foiled again. I was about to type a mildly malicious answer. wink
_________________________
David L. Jenson
Tuning - Repairs - Refurbishing
Jenson's Piano Service
-----

Top
#2117398 - 07/14/13 07:52 AM Re: Yamaha C7 hammer boring angles [Re: mariotto]
Olek Online   content
6000 Post Club Member

Registered: 03/14/08
Posts: 6351
Loc: France
Well I have seen a 1890+- Chickering grand where all hammers where bored the same direction (bass hammers with the orientation of medium hammers if I recall correctly) .

Don't know if they where original or if someone bored them that way.
_________________________
Isaac OLEG - http://picasaweb.google.fr/PianoOleg pro

Top
#2117499 - 07/14/13 01:13 PM Re: Yamaha C7 hammer boring angles [Re: David Jenson]
mariotto Offline
Full Member

Registered: 05/19/12
Posts: 56
Loc: EU
Originally Posted By: David Jenson
Originally Posted By: Ed McMorrow, RPT
Probably better to wait and get the specs from the piano. You never know some on-line rascal could give you wrong specs on purpose.
Drat! 'Foiled again. I was about to type a mildly malicious answer. wink

smile

Top

Moderator:  Piano World 
What's Hot!!
HOW TO POST PICTURES on the Piano Forums
-------------------
Sharing is Caring!
About the Buttons
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

The world's most popular piano web site.
-------------------
PIANO BOOKS
Interesting books about the piano, pianists, piano history, biographies, memoirs and more!
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
Sheet Music
(PW is an affiliate)
Sheet Music Plus Featured Sale
Download & Print Sheet Music Instantly
sheet music search
sheet music search

sheet music search
(ad) HAILUN Pianos
Hailun Pianos - Click for More
(ad) Lindeblad Piano
Lindeblad Piano Restoration
Who's Online
154 registered (36251, Al LaPorte, Almaviva, acortot, 47 invisible), 1524 Guests and 31 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
74223 Members
42 Forums
153543 Topics
2250205 Posts

Max Online: 15252 @ 03/21/10 11:39 PM
New Topics - Multiple Forums
Yamaha U3FS
by Piotr Dydycz
7 minutes 1 second ago
Uneven key balance
by Beemer
Today at 09:25 AM
Antique Piano Shop from TN
by IPDRPT
Today at 08:52 AM
Piano song requests?
by kent2012
Today at 08:19 AM
Requests?
by kent2012
Today at 08:06 AM
(ads by Google)

Visit our online store for gifts for music lovers

 
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 - 2014 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission