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PostPosted: Tue Jan 11, 2011 3:58 pm 
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Walnut
Walnut

Joined: Sat Aug 21, 2010 4:42 pm
Posts: 38
First name: Yvonne
Last Name: Bonifas
City: Bath
Zip/Postal Code: BA1 4BT
Country: UK
Focus: Build
Status: Amateur
I am making a tenor uke with 17 inch scale, neck to body joint at 12th fret. If I use really good well seasoned old wood, can I safely get away with no reinforcement? I dont want to take a risk of warping. Ive got a couple of old pieces of mahogany very heavy and close grained from recycled furniture, probably at least 80 years old.


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PostPosted: Tue Jan 11, 2011 7:12 pm 
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Cocobolo
Cocobolo

Joined: Sat Jan 30, 2010 11:54 pm
Posts: 186
Location: Miami, FL
First name: Michael
Last Name: Schreiner
City: Miami
State: FL
Zip/Postal Code: 33183
Country: USA
Focus: Build
Status: Semi-pro
I put a 1/4" maple lamination in my tenor uke necks and I worry less.
Michael


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PostPosted: Wed Jan 12, 2011 1:40 pm 
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Koa
Koa
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Joined: Thu Dec 18, 2008 11:42 am
Posts: 1135
Location: Hudson, MA
First name: Kevin
Last Name: Quine
City: Hudson
State: MA
Country: Usa
Focus: Build
Status: Amateur
I add a carbon fiber rod in my tenor necks. The laminated neck is a good idea too and can look pretty.
I have 5 or 6 uke plans around and none of them call for any reinforcement....I guess I'm just a nervous nellie


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PostPosted: Wed Jan 12, 2011 7:56 pm 
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Koa
Koa
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Joined: Wed Jan 24, 2007 2:45 pm
Posts: 1332
Location: Calgary, Canada
Status: Amateur
I have a 56 Martin Tenor with no reinforcement. Action is still good with no resets. It is a 12 fretter. With a 14, the carbon fiber sounds like a good idea that certainly shouldn't hurt.


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PostPosted: Thu Jan 13, 2011 3:21 am 
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Walnut
Walnut

Joined: Sat Aug 21, 2010 4:42 pm
Posts: 38
First name: Yvonne
Last Name: Bonifas
City: Bath
Zip/Postal Code: BA1 4BT
Country: UK
Focus: Build
Status: Amateur
Many thanks for the contributions


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PostPosted: Tue Nov 08, 2011 11:58 am 
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Cocobolo
Cocobolo

Joined: Thu Mar 11, 2010 1:02 am
Posts: 214
Location: Sebastopol, CA
First name: Michael
Last Name: Smith
City: Graton
State: CA
Zip/Postal Code: 95444
Country: USA
Focus: Build
Status: Amateur
I wish and engineer on this forum would come in and do the math on this. My gut tells me on and instrument with a 16 inch scale compared to a full size guitar the ukulele neck would be about a 4x4 fence post but then I don't know how to do the structural math so have no real idea.

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PostPosted: Tue Nov 08, 2011 7:06 pm 
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Koa
Koa

Joined: Sat Apr 19, 2008 10:08 pm
Posts: 1958
Location: Missouri
First name: Patrick
Last Name: Hanna
State: Missouri
Country: USA
Yvonne, this is just my personal feeling about your question. I honestly can't tell you whether you need reinforcement, and you don't state whether by "reinforcement" you mean laminations of harder woods, carbon fiber, or a combination. I am currently building a soprano uke. Obviously, a shorter scale than your uke. On my instrument, I won't add reinforcement. But I will try to orient the grain vertically through the neck (fingerboard to back) because I believe it tends to be a little stiffer that way. Many experienced luthiers have disagreed with this opinion in other discussions in the past. Nevertheless, I'll sleep a little better knowing I've done that. Well...all I can say is that my sleep is important to me, so that's the way I will do it. I think you can do it any way you wish, and you will be okay.

Patrick


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PostPosted: Tue Nov 08, 2011 8:13 pm 
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Contributing Member
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Joined: Mon Jul 27, 2009 7:52 am
Posts: 4524
First name: Big
Last Name: Jim
State: Deep in the heart of Bluegrass
Country: usa
Focus: Build
Status: Amateur
I use both the inlay strip and carbon fibre . I have done just Carbon fibre , is it necess. maybe not . Do i feel better bout it .. yeah .

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PostPosted: Wed Nov 09, 2011 1:04 pm 
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Brazilian Rosewood
Brazilian Rosewood
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Joined: Thu Jan 06, 2011 6:08 pm
Posts: 2712
First name: ernest
Last Name: kleinman
City: lee's summit
State: mo
Zip/Postal Code: 64081
Country: usa
Focus: Build
Status: Professional
It is a judjement call . I put one in on a vy soft sycamore neck, but not on a thicker koa neck. If your neck taper from nut to heel with a mahogany neck is 13-16mm . Don/t think you will need cf reinforcement, but if you did , it would not hurt either.


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