www.KitGuitarsForum.com

Learn to Kit Build a Guitar. Learn to Scratch Build a Guitar. Learn EVERYTHING Guitars Here!
It is currently Tue Aug 14, 2018 5:36 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 9 posts ] 
Author Message
PostPosted: Wed Mar 21, 2018 7:04 pm 
Offline

Joined: Sat Aug 30, 2014 5:49 pm
Posts: 28
I find opinions in both sides of the fence.....
If I’m not using a decorative strip on the center joint of the back of my guitar, do I need a reinforcing strip on the in inside?

Please share your thoughts......


Top
 Profile  
 
PostPosted: Wed Mar 21, 2018 7:48 pm 
Offline

Joined: Wed Nov 02, 2011 9:13 pm
Posts: 176
Cbstark46143 wrote:
I find opinions in both sides of the fence.....
If I’m not using a decorative strip on the center joint of the back of my guitar, do I need a reinforcing strip on the in inside?

Please share your thoughts......


I put it in. Whether you do depends on how much you trust the glue joint and the braces to keep the two halves from parting company. (I also put small diamonds on the center join of the soundboard, between the lower braces and the tail block, for the same reason.

If it contributes to the robustness of the guitar without affecting its tone, I don't see why I shouldn't do it.

My two cents.


Top
 Profile  
 
PostPosted: Thu Mar 22, 2018 5:32 am 
Offline

Joined: Wed Aug 13, 2014 12:14 pm
Posts: 1079
It may not be "necessary," but it sure seems like a good idea to put it in. Why would you not?

_________________
Everybody is ignorant, only on different subjects. -- Will Rogers
There are lots of people who mistake their imagination for their memory. - Josh Billings
Anything is possible if you don't know what you are talking about.


Top
 Profile  
 
PostPosted: Thu Mar 22, 2018 6:18 am 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5662
Location: Hegins, Pa
It should be in there. The back joint is important. Without it you have a much higher risk of joint failure .

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


Top
 Profile  
 
PostPosted: Fri Mar 23, 2018 12:07 am 
Offline

Joined: Mon Jul 09, 2012 9:49 pm
Posts: 165
John's the expert, here. Speaking from the chorus, I think the crossgrain reinforcement is necessary. Regardless of how the two back plates intersect, either directly or separated by a decorative strip, there is a glue joint there.

Parenthetically, I've often wondered what whether there would be a negative result from using the same sort of reinforcement strip on the backside of the soundboard.

_________________
peter havriluk


Top
 Profile  
 
PostPosted: Thu Apr 05, 2018 6:51 pm 
Offline

Joined: Wed Nov 02, 2011 9:13 pm
Posts: 176
phavriluk wrote:
Parenthetically, I've often wondered what whether there would be a negative result from using the same sort of reinforcement strip on the backside of the soundboard.


As I noted above, I put small (ca 3 cm square) diamonds, made from scraps from the soundboard itself, on those parts of the lower bout that don't have braces real close by. Cumpiano has instructions for it in his book. The diamonds have grains that are perpendicular to that of the soundboard.

I think that the main reason for the reinforcing strip on the back is that the back usually suffers a lot more physical abuse than the soundboard (on my guitars, at least). The fretboard and strings offer a certain amount of protection, and you've got all those braces, the bridge plate, and the soundhole reinforcement as well. The soundboard cracks I've seen have rarely been on the glue seam.


Top
 Profile  
 
PostPosted: Fri Apr 06, 2018 12:18 am 
Offline

Joined: Sun Mar 09, 2014 8:13 pm
Posts: 1574
The back of an acoustic guitar, has the shortest radius, resulting in twice the curve than the top. The reinforcing strip helps to keep the seam together.


Top
 Profile  
 
PostPosted: Sat Apr 07, 2018 8:20 am 
Offline

Joined: Thu May 24, 2012 8:03 am
Posts: 877
Location: Chestertown Maryland
I have seen several makers that add a small diamond shaped cleat or two to the top joint in the area of the lower bout that has the longest section of unsupported seam. I have done this a couple of times.

Ed


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


Top
 Profile  
 
PostPosted: Sat Apr 07, 2018 10:49 am 
Offline

Joined: Sun Mar 09, 2014 8:13 pm
Posts: 1574
I put a small (about 1 cm) square or circular cleat in about the same place as Ed's guitar, on my tops. I try to put it about half way between the tail block and the bridge plate.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


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