Back Bracing Question

What're You Doing?
Post Reply
David L
Posts: 1319
Joined: Thu Jan 06, 2011 8:04 pm
Location: Slidell, La

Back Bracing Question

Post by David L »

Just Started my first build (HD28). I have seen two different methods for bracing the back, installing the centerstrip brace first, then notching the cross braces to fit over the center brace, the other method of course is to glue the cross braces first, then cut the center brace into pieces to fit between the cross braces. The latter seems like it would be easier but notching the cross braces over a one-piece center strip would seem to be better structurally. Which method do some of you guys use? What are the advantages/disadvantages of each?

Thanks,
David L
tippie53
Posts: 7118
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
Contact:

Re: Back Bracing Question

Post by tippie53 »

I suggest apply the center first. You want that to be in a straight line. Then when you cut for the braces you can use razor blades as chisels . Also you can shape the center strip this way placing after you can't and the center strip won't have a finished look.
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
kencierp

Re: Back Bracing Question

Post by kencierp »

Ditto -- John

Done something like this:

http://www.kennethmichaelguitars.com/ki ... embly.html
Kevin Sjostrand
Posts: 3918
Joined: Sat Feb 09, 2008 8:06 pm
Location: Visalia, CA

Re: Back Bracing Question

Post by Kevin Sjostrand »

Hi David,
Welcome to the forum.
If I'm reading you correctly;
you don't want to notch the braces to fit over the center strip, you want to cut away, or notch the center strip where the braces will be glued and fit them into these "notches"

Kevin.
tippie53
Posts: 7118
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
Contact:

Re: Back Bracing Question

Post by tippie53 »

Notch the strip for the braces
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
David L
Posts: 1319
Joined: Thu Jan 06, 2011 8:04 pm
Location: Slidell, La

Re: Back Bracing Question

Post by David L »

It seems to me that somewhere in one of the gazillion videos I've watched that they installed the cross braces first and then cut the center strips to fit in between the cross braces. In another video I think I saw them glue the center strip first and instead of chiselling out the center strip to allow for cross brace insrallation they notched the bottom of the cross bracesto fit over the center strip. From the responses that I'm getting, I am going to do it the way ya'll recommend and that's cool, I was just wondering why it wouldn't be better "structurally" to leave the center piece whole and notch the cross pieces over the center. Sorry guys, I'm like a little five-year old, I always got to know why, why, why...

Thanks,
David L
tippie53
Posts: 7118
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
Contact:

Re: Back Bracing Question

Post by tippie53 »

I have seen notched braces loosen . Getting the center cross grain support allows you to shape the support for a more finished appearance . Notching isn't that difficult .
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
Post Reply