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 Post subject: O Style Plans?
PostPosted: Tue Jan 13, 2009 4:37 pm 
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Cocobolo
Cocobolo

Joined: Thu Feb 21, 2008 2:37 pm
Posts: 118
Location: Louisville, KY USA
I would like to build a guitar along the lines of a Martin O style. Does anyone know if plans are available? Do I really need plans, or would it just be a matter of reducing the size of a OOO down to O specs? Any other considerations or advice?
Thanks in advance for any help,
Walter Lay

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 Post subject: Re: O Style Plans?
PostPosted: Tue Jan 13, 2009 5:44 pm 
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Koa
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Joined: Wed Oct 10, 2007 2:47 am
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Location: Wauwatosa, WI, USA
I've never found plans. Contact John at Blues Creek for an outline trace and brace layout. He's the man!

Other than that, 24.9 scale, pick your string spacing, usually 2 5/16. MIMF Martin dimension page gives 4 3/16 max depth. Assuming that is at the tail, don't know about at the heal. Anyone?


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 Post subject: Re: O Style Plans?
PostPosted: Tue Jan 13, 2009 6:46 pm 
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Joined: Fri May 09, 2008 2:25 pm
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First name: George
City: Seattle
State: WA
Country: USA
Focus: Build
Status: Amateur
Kevin Gallagher is another possible source for 0-sized Martin plans.

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 Post subject: Re: O Style Plans?
PostPosted: Tue Jan 13, 2009 6:55 pm 
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Koa
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Joined: Tue Jul 04, 2006 4:09 am
Posts: 841
Location: Auburn, California
First name: Hank
Last Name: Mauel
City: Auburn
State: CA
Zip/Postal Code: 95603
Focus: Build
Status: Professional
Here is a link to my Shasta Parlor...taken from an old Martin 0-16 New Yorker of the 1960's...with the major dimensions given. If you need more, drop me a PM with your needs.


http://www.mauelguitars.com/Parlor.htm

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 Post subject: Re: O Style Plans?
PostPosted: Tue Jan 13, 2009 7:02 pm 
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Mahogany
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Joined: Fri Jan 25, 2008 11:32 pm
Posts: 82
Location: Nova Scotia, Canada
Focus: Build
Status: Amateur
I don't recall who posted all the specs for a 1937 Martin 0-18. but I saved them all. Here's the basic dimensions:

12 Fret
total length 37 3/4"
body length 19 1/8"
body width upper 9 1/2"
body width lower 13 1/2"
body depth upper 3 3/8"
body depth lower 4 3/16"
fingerboard at nut 1 7/8"
fingerboard at 12th 2 5/16"
soundhole diam. 3 5/8"
scale 24.9"

14 Fret
total length 38 3/8"
body length 18 7/8"
body width upper 10"
body width lower 13 1/2"
body depth upper 3 11/32"
body depth lower 4 1/4"
fingerboard at nut 1 11/16"
fingerboard at 12th 2 1/8"
soundhole diam. 3 5/8"
scale 24.9"

Hope this helps, I'll see if I can post some of the other stuff.

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 Post subject: Re: O Style Plans?
PostPosted: Tue Jan 13, 2009 8:21 pm 
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Koa
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Joined: Wed Oct 10, 2007 2:47 am
Posts: 781
Location: Wauwatosa, WI, USA
Does anyone have the upper body depth for the OO as well?

Also, not that you cant make it in different dimensions, but what radii are the top and backs on the Martins. O and OO.


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 Post subject: Re: O Style Plans?
PostPosted: Tue Jan 13, 2009 10:30 pm 
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Cocobolo
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Joined: Thu Feb 21, 2008 2:37 pm
Posts: 118
Location: Louisville, KY USA
Very helpful info. Thanks to you all.
Walter

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Walter Lay
"It's taken me so long, but now that I know
I can see. All that I do or say, is all I ever will be"
- Billy Joe Shaver


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 Post subject: Re: O Style Plans?
PostPosted: Tue Jan 13, 2009 10:38 pm 
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Cocobolo
Cocobolo

Joined: Thu Feb 21, 2008 2:37 pm
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Location: Louisville, KY USA
Hank,
Your Shasta parlor is beautiful.

What about bracing? Is it lighter than you would use for an OM or OOO? And thicknesses for top, b & s; any lighter there?

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Walter Lay
"It's taken me so long, but now that I know
I can see. All that I do or say, is all I ever will be"
- Billy Joe Shaver


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 Post subject: Re: O Style Plans?
PostPosted: Tue Jan 13, 2009 11:47 pm 
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Joined: Fri Mar 24, 2006 12:42 pm
Posts: 2360
Location: Windsor Ontario Canada
First name: Fred
Last Name: Tellier
City: Windsor
State: Ontario
Zip/Postal Code: N8T2C6
Country: Canada
Focus: Build
Status: Amateur
Contact me at fred-tellier@cogeco.ca and I will email you the files I have collected on 0 size Martin guitar drawings. I can't recall where I got them but the drawings look to be ok to build from.

Fred

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 Post subject: Re: O Style Plans?
PostPosted: Wed Jan 14, 2009 11:16 am 
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Koa
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Joined: Tue Jul 04, 2006 4:09 am
Posts: 841
Location: Auburn, California
First name: Hank
Last Name: Mauel
City: Auburn
State: CA
Zip/Postal Code: 95603
Focus: Build
Status: Professional
walnut47 wrote:
Hank,
Your Shasta parlor is beautiful.

What about bracing? Is it lighter than you would use for an OM or OOO? And thicknesses for top, b & s; any lighter there?



Quarter inch wide by 5/8" tall at the X intersection bracing. Tapered toward the top and scalloped. Back and sides in the .070-.080" thickness range, depending on "feel". Tops are thicknessed to a "desired flex point" which is to say that I have a feeling that I'm looking for as I flex the top. Therefore, there is no "fixed" thickness. Each top goes to it's given flex point so inherent stiffness is compensated for by either more or less thickness. It's an acquired feel and there is really no way to describe it so that someone else could grab a piece of wood and duplicate it. Also, it's what works for my bracing architecture to get to the sound I want from the guitar.
Also I have built a few with only one tone bar. No apparent loss of top strength due to the relatively "small" top area. I splay the X brace to 94 degrees so it can get closer to the soundhole (about 7/8" down from edge) which opens a bit more of the lower top area and I use only one finger or wing brace off the X brace. They are placed to come off the X right under the end of the bridge.
That's about it. The Martin 0-16 New Yorker was a sweet small guitar and serves well in the "parlor" idiom. As I build them, they have a volume commensurate with OM/000 bodied instruments yet offer a smaller, more comfortable instrument to hold. People of smaller stature find this a very appealing feature, especially a petite lady.

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 Post subject: Re: O Style Plans?
PostPosted: Wed Jan 14, 2009 10:53 pm 
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Cocobolo
Cocobolo

Joined: Thu Feb 21, 2008 2:37 pm
Posts: 118
Location: Louisville, KY USA
Thank you Hank. That's very helpful.
Walter

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Walter Lay
"It's taken me so long, but now that I know
I can see. All that I do or say, is all I ever will be"
- Billy Joe Shaver


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