Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Fri May 16, 2025 3:44 pm


All times are UTC - 5 hours





Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject:
PostPosted: Sat Jan 06, 2007 1:27 am 
Offline
Koa
Koa

Joined: Sat Feb 12, 2005 6:20 am
Posts: 1437
First name: Bob
Last Name: Johnson
City: Denver
State: CO.
Zip/Postal Code: 80224
Country: USA
Focus: Build
Status: Amateur
Martin lists the height of body at bottom as 41/8'-What is height at top.

Primo Coco with 1/4" Master Addi bracing and top(Stiff).
What is the final thickness for the back and sides?
Should I go thinner than 0.10"?
Thanks,bob J39090.3431481481


Top
 Profile  
 
 Post subject:
PostPosted: Sat Jan 06, 2007 2:40 am 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Tue Mar 14, 2006 12:41 pm
Posts: 318
Location: Trois-Rivieres
First name: Alain
Last Name: Lambert
City: Trois-Rivieres
State: Quebec
Country: Canada
Focus: Build
Status: Amateur
The body height at the neck is 3 1/4".
I have not work with Coco, so cannot advise on thickness. I would assume your normal thickness, may be a thad thinner.


Top
 Profile  
 
 Post subject:
PostPosted: Sat Jan 06, 2007 6:39 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Nov 03, 2006 6:50 pm
Posts: 2711
Location: Victoria, BC
First name: John
Last Name: Abercrombie
Status: Amateur
Bob-
I just checked my stash of templates/plans- Various plans reputed to be OOO/OM have the body depth at the neck varying from 3 1/8 up to 3 1/2, though the 4 1/8 range is pretty standard for the end depth.
It only takes a few minutes to lay out the side profile on some wrapping paper and see what 'looks right' to you. The amount of arch you put in the back will affect the appearance, and you don't want a guitar that is too 'fat' in the middle, I'd think.
Sides should be thin enough to bend without cracking, but thick enough not to ripple too much- not much help, huh? 075-080 seems to be common- if you have any scraps (unlikely) it pays to experiment. You can probably find info in the archives here or at MIMF.
John


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jan 07, 2007 1:29 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Sep 09, 2005 7:51 am
Posts: 3786
Location: Canada
I bend pretty much everything at about 85-90 these days, coco is easy stuff to bend, lots of resin like EIrw. For the back, about .100 rough.

_________________
Tony Karol
www.karol-guitars.com
"let my passion .. fulfill yours"


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 08, 2007 12:14 am 
Offline
Koa
Koa

Joined: Sat Feb 12, 2005 6:20 am
Posts: 1437
First name: Bob
Last Name: Johnson
City: Denver
State: CO.
Zip/Postal Code: 80224
Country: USA
Focus: Build
Status: Amateur
bump


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 08, 2007 12:51 am 
Offline
Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
.095-.090 back, .085-.080 sides will work fine.

4 1/4" at tail block and 3 5/8 at the neck block. These dimensions were take off a 1979 Martin OM-28 I have had for years.MichaelP39090.3757638889


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 08, 2007 3:01 am 
Offline
Koa
Koa

Joined: Sat Feb 12, 2005 6:20 am
Posts: 1437
First name: Bob
Last Name: Johnson
City: Denver
State: CO.
Zip/Postal Code: 80224
Country: USA
Focus: Build
Status: Amateur
Thanks much to Michael and all of you!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: Bing [Bot] and 32 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