Official Luthiers Forum! • View topic

Board index » Luthiers Forum Rooms » Guitar Building Forum

All times are UTC - 5 hours

Forum rules

Be nice, no cussin and enjoy!

Martin 0-12 top

Page 1 of 1

[ 11 posts ]

Print view

Previous topic | Next topic

Author

Message

ChuckB

Post subject: Re: Martin 0-12 top

Posted: Sun May 09, 2010 7:27 am

Koa

Joined: Sat Mar 01, 2008 2:44 pm
Posts: 692

Fillipo, I just finished a 0 size 14 fret with a larch top. The top was very stiff also, as stiff as some adi I have used. I had similar concerns. My top thickness ended up at .090 with light sitka bracing. Right off the bench, the bass was better than I expected and well balanced overall. If interested, could check my notes on the heidhts of the braces, remember this is a 14 fret.

Chuck

_________________
_________________

Top

bluescreek

Post subject: Re: Martin 0-12 top

Posted: Sun May 09, 2010 7:34 am

Brazilian Rosewood

Joined: Mon Jan 28, 2008 5:21 am
Posts: 4915
Location: Central PA
First name: john
Last Name: hall
City: Hegins
State: pa
Zip/Postal Code: 17938
Country: usa
Focus: Build
Status: Professional

I agree .090 to .095 with standard bracing. I would not go below .250 on bracing width. You should have a 3 5/8 sound hole

_________________
John Hall
blues creek guitars
Authorized CF Martin Repair
Co President of ASIA
You Don't know what you don't know until you know it

Top

ChuckB

Post subject: Re: Martin 0-12 top

Posted: Sun May 09, 2010 8:47 am

Koa

Joined: Sat Mar 01, 2008 2:44 pm
Posts: 692

Filippo, The X braces are .250 wide, .590 high at X intersection, .1875 (3/16") at lowes point on X scallop. Tone bars are 5/16" at highest point, scallopped to 1/8" and .200" wide. Some 0 size have only one tone bar, most 14 fret that I saw on UMGF had two, so I went with that. Finish thickness of top is .090". Here are pics of bracing.

Chuck

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

_________________
_________________

Top

ChuckB

Post subject: Re: Martin 0-12 top

Posted: Sun May 09, 2010 8:55 am

Koa

Joined: Sat Mar 01, 2008 2:44 pm
Posts: 692

And, 3 5/8" soundhole is normal as John said, but I went to 3 13/16" for a little more room in case I need to get inside later.

Thanks for looking, Chuck

_________________
_________________

Top

Laurent Brondel

Post subject: Re: Martin 0-12 top

Posted: Sun May 09, 2010 11:01 am

Contributing Member

Joined: Wed Aug 31, 2005 7:30 am
Posts: 1792
Location: United States

I'm building two B-4s (similar to a 12 fret 0) at the moment, both with red spruce tops, and both ended up at .103". Bracing is red spruce, but I've used sitka successfully. Here's a pic of the first one. I use a 4" soundhole.

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

_________________
Laurent Brondel
West Paris, Maine - USA
http://www.laurentbrondel.com/

Top

Laurent Brondel

Post subject: Re: Martin 0-12 top

Posted: Sun May 09, 2010 4:18 pm

Contributing Member

Joined: Wed Aug 31, 2005 7:30 am
Posts: 1792
Location: United States

Filippo Morelli wrote:

Do you end up with thinner bracing with a thicker top?

Well, I don't consider .103 to be thick… For small guitars I use .250" braces except for finger braces that are .200" and the UTB .625". But yes, the braces are relatively low and thinly profiled.
EDIT: I forgot to add that I sand the lower bout perimeter after the box is closed. It's a bit different for every guitar, but the edge of the lower bout can end up being around .075".

_________________
Laurent Brondel
West Paris, Maine - USA
http://www.laurentbrondel.com/

Top

Page 1 of 1

[ 11 posts ]

Board index » Luthiers Forum Rooms » Guitar Building Forum

All times are UTC - 5 hours

Who is online

Users browsing this forum: timtam and 42 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: