Violin Forum/Message Board Forum Index Violin Forum/Message Board
Provided by Violin Vision
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Worm Repair

 
Post new topic   Reply to topic    Violin Forum/Message Board Forum Index -> Violin Making and Restoration Forum
View previous topic :: View next topic  
Author Message
Jack H.
Super Member


Joined: 24 Mar 2007
Posts: 346
Location: Israel

PostPosted: Tue Mar 27, 2007 3:59 am    Post subject: Worm Repair Reply with quote

I have a nice french fiddle that I purchased in 6 pieces, It has some worm damage to the lower treble rib, it is right at the edge where it meets the top ( no damage to the top however), it looks like a mouse gnawed away at it. The damage runs along the edge for 6 cms and about 3 mm down. half the length the wood is totally missing and the rest is damaged to the point that a simple gluing might not work well.
I am wondering the best method to repair this.
Do I have to remove all the damaged area and fit it with replacement wood? is there another way?

Jack
Back to top
View user's profile Send private message Send e-mail
Leif Luscombe
Site Admin


Joined: 19 Mar 2007
Posts: 126
Location: Mount Elgin, Ontario, Canada

PostPosted: Tue Mar 27, 2007 7:21 am    Post subject: Reply with quote

I would guess the only way to repair the damage would be to splice the missing wood with matching material.
Back to top
View user's profile Send private message Send e-mail
Jack H.
Super Member


Joined: 24 Mar 2007
Posts: 346
Location: Israel

PostPosted: Tue Mar 27, 2007 9:34 am    Post subject: Reply with quote

A plice, like a through patch... interesting picture in my mind. feather edge the repair area...
good plan.
thanks
Back to top
View user's profile Send private message Send e-mail
Leif Luscombe
Site Admin


Joined: 19 Mar 2007
Posts: 126
Location: Mount Elgin, Ontario, Canada

PostPosted: Tue Mar 27, 2007 10:04 am    Post subject: Reply with quote

Is the lining intact?
Back to top
View user's profile Send private message Send e-mail
Jack H.
Super Member


Joined: 24 Mar 2007
Posts: 346
Location: Israel

PostPosted: Wed Mar 28, 2007 1:21 am    Post subject: Reply with quote

Yes, the lining is intact.
It is one of the 6 pieces that the violin came in.
Jack
Back to top
View user's profile Send private message Send e-mail
Michael Darnton
Moderator


Joined: 23 Mar 2007
Posts: 1281
Location: Chicago

PostPosted: Wed Mar 28, 2007 8:18 am    Post subject: Reply with quote

One way to approach this, since it sounds like it's right on the edge, is to feather in, from the inside, a new matching piece of rib. If the top 3mm of the rib are damaged, for instance, you'd take out the inside of the rib diagonally down 4mm on the outside and 8 or 10 on the inside to give a nice gluing surface, make a counterpart that's relieved a bit where the new wood will go and a hair into the feathered part of the old rib (which will then be pushed outwards and is sanded off to make a clean feathered joint on the outside that's invisible), and glue in the new piece clamping with a cushiony caul from the inside.

This is maybe a bit hard to understand. It's shown in the Weisshaar book as a way to raise ribs, for which it's butchery (removing half a rib to raise it 2mm) but the strategy works well for any type of rib patch. On ribs, tiny finger patches are sometimes used in this way to fix difficult cracks--they're like little post patches that go all the way through, just at the crack, removing the crack completely, leaving a feathered edge that disappears.

In general, anytime you want to do something invisibly, a feathered edge will do that beautifully--the wood becomes gradually transparent as it thins until it blends into the other piece--but you should be very conservative in how much wood you remove or cover to do that.
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Jack H.
Super Member


Joined: 24 Mar 2007
Posts: 346
Location: Israel

PostPosted: Wed Mar 28, 2007 11:07 am    Post subject: Reply with quote

I lloked in the weisshaar book under worm repair adn did not find what I needed, but when Leif mentioned splicing it I recalled the section on rib repair and feathering it.
it will be a bit difficult to do with the curve and all but with some patience it should be ok. Better than using plastic wood....

J
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    Violin Forum/Message Board Forum Index -> Violin Making and Restoration Forum All times are GMT - 4 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group