www.KitGuitarsForum.com

Learn to Kit Build a Guitar. Learn to Scratch Build a Guitar. Learn EVERYTHING Guitars Here!
It is currently Sun Dec 08, 2019 3:54 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 15 posts ]  Go to page 1, 2  Next
Author Message
PostPosted: Tue Feb 17, 2015 11:58 am 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5986
Location: Hegins, Pa
Today I got the bridge off. There was a rather large filler under the bridge. It appears that some of the filler wasn't glued well can lifted out on the bridge. I check to make sure that what was there was solid. In this case I will fill in the void and glue in with HHG , this filler will stay clamped overnight. I will then do another filler so that there is a matrix , this will give this more structure. The filler is down to the plate but is will be structurally ok.
Once that is fixed I will be able to glue in the new bridge. I also measured the neck and there is a forward bow in it. I pulled 5 frets and work to get us some back bow to improve the neck relief.
here are the pics of what we are up to . With the old Tee bar non adjustable necks we use a heavier tang to back spring the neck to make the relief adjustment


You do not have the required permissions to view the files attached to this post.

_________________
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


Top
 Profile  
 
PostPosted: Tue Feb 17, 2015 5:08 pm 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5986
Location: Hegins, Pa
When I got into making the bridge I found that the old one was not original. The holes were not even close to center. Since the bridge plate and now the bridge are not original I talked to my customer and we are going to make this back to original. I did find there was some damage also under the bridge so now we can take care of all the issues.
I am making the bridge plate about 1/8 in larger to the front and rear for structure. I will make a new bridge once the footprint is repaired. You can see there is a hole in the top and there is a filler under the bridge. Once the new plate is on I can repair all of this also. Here are some pics for you and you can see the process of repair.

In all repair issues structure is a key element.


You do not have the required permissions to view the files attached to this post.

_________________
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


Top
 Profile  
 
PostPosted: Tue Feb 17, 2015 6:55 pm 
Offline

Joined: Tue Nov 26, 2013 7:15 pm
Posts: 141
Location: Minnesota
Wow! You can actually fix that? I'm impressed.

Ed


Top
 Profile  
 
PostPosted: Tue Feb 17, 2015 6:59 pm 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5986
Location: Hegins, Pa
yes it can be repaired.

_________________
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


Top
 Profile  
 
PostPosted: Thu Feb 19, 2015 2:08 pm 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5986
Location: Hegins, Pa
Today I got the clamps off from the plate and had to inlay another patch.


You do not have the required permissions to view the files attached to this post.

_________________
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


Top
 Profile  
 
PostPosted: Fri Feb 20, 2015 7:43 am 
Offline

Joined: Mon Jul 28, 2014 7:50 am
Posts: 678
Location: Chadds Ford, PA
Interesting stuff! How did you get the old bridge plate off? Were the old patches in the top going thru the soundboard? In a case like this would you lay in a spruce veneer if the defect didn't go thru the board? Plugging the pin holes is for adding to the board integrity before attaching the new bridge? Thanks for showing this!


Top
 Profile  
 
PostPosted: Fri Feb 20, 2015 8:31 am 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5986
Location: Hegins, Pa
There is a knack to get out a plate. I think we did a video on that and it will be up after editing. I will take a photo essay on what I did to show you guys.
There were a few patches under the bridge and one was through the top. I had to replace the plate as the holes were off location and this allowed me to reglue the fillets in and through layering the patched I can create and strengthen the area. More of that process will follow as I have one more layer to do .
When I pull a plate I make a sponge in the shape of the plate and let that soak on the plate about 4 hr then use a heater and steam out the glue through the wet wood , this allows easier removal and cleaner work offing the plate.

_________________
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


Top
 Profile  
 
PostPosted: Sat Feb 21, 2015 1:00 pm 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5986
Location: Hegins, Pa
The top under the bridge was in pretty bad shape but with all the l fillers it is now pretty solid. Tomorrow I can put the top filler on. Here is what it looks like so far. As you can see it is fill glue fill glue repeat.
No I will also tell you that I am using fish and hhg glue for this. The reason is that down the road if ever it has to be worked on , the fillets can be removed easy with out causing damage. Had I used epoxy or CA that would seal the wood grain and not allow a proper reglue. This is a museum style repair in that all the work is totally reversible.


You do not have the required permissions to view the files attached to this post.

_________________
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


Top
 Profile  
 
PostPosted: Sat Feb 21, 2015 7:48 pm 
Offline

Joined: Tue Nov 26, 2013 7:15 pm
Posts: 141
Location: Minnesota
That's amazing. I'm anxious to see how it turns out.

Ed


Top
 Profile  
 
PostPosted: Sat Feb 21, 2015 10:17 pm 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5986
Location: Hegins, Pa
It is feeling very strong I am thinking of loading meds on it. Tomorrow I place the top fillet. Pics will follow to the end.

_________________
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 15 posts ]  Go to page 1, 2  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


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 post attachments in this forum

Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group