Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Sat Nov 30, 2024 9:55 am


All times are UTC - 5 hours





Post new topic Reply to topic  [ 6 posts ] 
Author Message
PostPosted: Mon Apr 06, 2009 12:40 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Tue Jan 04, 2005 10:03 am
Posts: 6680
Location: Abbotsford, BC Canada
I use to install my center grafts on the back prior to installing the braces, but I never was able to get the braces installed without even a slight gap between the brace and the graft. So I changed my method. I know Lance does (or did, maybe still does) it this way and that's where I got the idea.

I now install my center graft after the braces are installed.

Here's how I do it to ensure a nice snug fit.

I first measure the distance from the outside edge of the body to the inside edge of the head and tail blocks. I than mark that distance on the inside of the plate.

Tail

Image

Head

Image

I than use tape to find my precise length of the graft, between each brace. I use the 3M strapping tape as it doesn't stretch at all. So I put tape in between each brace and use a razor blade to cut it to the exact distance between the braces. I than mark each piece of tape so I know which piece goes where.

Image

I than pull the tape off and put it on the center graft. I align one edge of the tape to the edge of the graft (not shown in the picture though as I thought of this after I took the pic) and than I cut right at the end of the tape. This give me a perfect fitting center graft, and actually when gluing them up in the go bar deck, the radius of the back helps push the ends of the graft against the brace.

Image

I make my center grafts 5/8" wide (just because) and here's how I layout each graft location so I get them lined up.

I have a block that is squared up and I put wax on the base and along two edges. I measure from the center of the plate (easy to see with a book match like that Tassie Blackwood) 5/16" (half my center graft width) and I locate my aligning block. I put a go bar on it to hold it in place.

Image

Than I just but up the center graft to the block and the brace and I'm good to do. I have little clamping cauls specific for gluing the graft down.

Image

And a close up of the nice tight fit.

Image

Hope this helps someone.

_________________
My Facebook Guitar Page

"There's really no wrong way, as long as the results are what's desired." Charles Fox

"We have to constantly remind ourselves what we're doing....No Luthier is putting a man on the moon!" Harry Fleishman

"Generosity is always different in the eye of the person who didn't receive anything, but who wanted some." Waddy Thomson


Top
 Profile  
 
PostPosted: Mon Apr 06, 2009 3:36 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Feb 15, 2006 7:37 am
Posts: 4805
I really like your idea with the tape. I glued the graft in pieces on my latest, but the fits aren't precise. Thanks, Rod.


Top
 Profile  
 
PostPosted: Tue Apr 07, 2009 5:44 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Apr 18, 2007 6:46 am
Posts: 1012
Location: Issaquah, Washington USA
Rod, I find it easier to install the back graft in one piece and notch the braces.

_________________
A higher purpose for wood.
Rich Smith
Issaquah, WA


Top
 Profile  
 
PostPosted: Tue Apr 07, 2009 8:20 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Tue Jan 04, 2005 10:03 am
Posts: 6680
Location: Abbotsford, BC Canada
Ricardo wrote:
Rod, I find it easier to install the back graft in one piece and notch the braces.


That's good for you Ricardo. But your point is? This is not about discussing which way one likes best, its a tutorial on how one method is done.

_________________
My Facebook Guitar Page

"There's really no wrong way, as long as the results are what's desired." Charles Fox

"We have to constantly remind ourselves what we're doing....No Luthier is putting a man on the moon!" Harry Fleishman

"Generosity is always different in the eye of the person who didn't receive anything, but who wanted some." Waddy Thomson


Top
 Profile  
 
PostPosted: Tue Apr 07, 2009 10:08 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Mon Dec 27, 2004 9:42 pm
Posts: 4217
Location: Buffalo, NY
First name: Robert
Last Name: Cefalu
City: Buffalo
State: NY
Zip/Postal Code: 14217
Country: US
Nice Rod.

Notch the braces?

_________________
Beautiful and unusual tone woods at a reasonable price.
http://www.rctonewoods.com/RCT_Store
The Zootman
1109 Military Rd.
Kenmore, NY 14217
(716) 874-1498


Top
 Profile  
 
PostPosted: Mon Apr 13, 2009 3:08 am 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Mon Apr 06, 2009 8:17 pm
Posts: 142
First name: Daniel
Last Name: Green
City: Milford
State: Ohio
Zip/Postal Code: 45150
Country: U.S of A
Focus: Build
Status: Amateur
Thank you very much for sharing, I look forward to learning here at OLF


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 8 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:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com