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PostPosted: Fri May 31, 2013 2:25 am 
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Walnut
Walnut

Joined: Wed Apr 10, 2013 2:53 pm
Posts: 9
First name: Juergen
Last Name: Voss
Country: Germany
Focus: Build
Status: Amateur
Hi,
this is my second thread and again it´s a "stupid" mistake I´m need to correct.
After buying the classical kit at madinter (which is unservice) I decided to perhaps start with a serviced kit to get more experience before I start with the classical and bought the ooo Kit from Stewmac. Everything went fine until I finished the bracing of the top clamping the top to a flat surface. It was quite late me being a bit tired, but I continued with the back bracing without checking for the instruction. I was absolutely convinced I had to do the same with the back. And instead to use a radiused caul for clamping the back braces I used a flat surface and left everything to cure for about 4 days as I didn´t have any time to continue working on the guitar. Yesterday I checked the instructions what to do next and I read with horror I had done the back bracing definitly wrong.
I need your help! What can I do? The back is now slightly domed but the radius is much bigger than 20´. Can I go on with the building of the guitar or do I have to remove the bracing? The question would be how to do this without damaging the braces and the back. I don´t have a clue about this. And I fear to have the beautiful back of my ooo ruined


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PostPosted: Fri May 31, 2013 11:58 pm 
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Contributing Member
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Joined: Wed Jan 13, 2010 12:46 am
Posts: 1247
First name: Beth
Last Name: Mayer
City: Tucson
State: AZ
Country: United States
Focus: Build
Status: Amateur
I'm not a pro, but I would order another stick of brace wood from one of the wood suppliers, and start over. You can chisel those braces off without damaging the back wood. Good luck.


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PostPosted: Sat Jun 01, 2013 7:06 am 
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Koa
Koa
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Joined: Tue Mar 18, 2008 8:43 am
Posts: 775
Location: Florida
First name: John
Last Name: Killin
Focus: Build
Status: Amateur
Jurgen wrote:
The back is now slightly domed but the radius is much bigger than 20´.


I’ll start by saying I’m no pro so better advice may come.

Are you saying there is more of a dome to the shape of the back now? That is what you want. More curve than you got with the top. I’m building from the Stew Mac 000 plans now and don't see where it says what the intended radius is. I'm going to use a 15' radius for the back.

I've clamped uke braces flat and had them return to the radius that was carved in the brace. I think you might be OK. If not, just order some new braces, or make some from the brace stock in your un-serviced kit. You are in a “measure first cut once point” where you have done the work, just go ahead and measure it before you cut new braces and make more work for yourself. If it isn’t right, it won’t be hard to redo (and you should).

Good Luck,

John


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PostPosted: Sat Jun 01, 2013 9:47 am 
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Koa
Koa

Joined: Sat Apr 19, 2008 10:08 pm
Posts: 1943
Location: Missouri
First name: Patrick
Last Name: Hanna
State: Missouri
Country: USA
I think Juergen is telling us there is less dome on the back than anticipated--in other words, a radius much longer than 20'. Juergen, lay a straight edge over the back and make a photograph. Post it here, and the experts will be able to advise whether you've got enough back dome.
Patrick


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PostPosted: Sat Jun 01, 2013 10:20 am 
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Joined: Fri Mar 24, 2006 12:42 pm
Posts: 2332
Location: Windsor Ontario Canada
First name: Fred
Last Name: Tellier
City: Windsor
State: Ontario
Zip/Postal Code: N8T2C6
Country: Canada
Focus: Build
Status: Amateur
The braces in the kit are at whatever radius StewMac uses and by clamping then flat you straightened them but they probably have sprung back to close to the radius. I would post these kind of questions on the main forum as many of us never check the kit forum, I look at new posts or I would never have seen this.

Fred

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PostPosted: Tue Jun 04, 2013 4:02 am 
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Walnut
Walnut

Joined: Wed Apr 10, 2013 2:53 pm
Posts: 9
First name: Juergen
Last Name: Voss
Country: Germany
Focus: Build
Status: Amateur
Ok, first of all thanks for your answers.

Directly after taking the clamps away the back was very flat. But on the next day it looked better, still less than what the braces had before glueing, but I decided to go on and close the soundbox. Hmm, I´m not sure if it was a good idea but I have to live with this decision as I think removing the back would be not possible for me.

As for the comment to post in the regular part of the forum: when the next problem arises (which will happen without doubt) I will be posting there.


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PostPosted: Tue Jun 04, 2013 11:01 am 
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Mahogany
Mahogany

Joined: Thu Mar 03, 2011 12:55 pm
Posts: 51
Location: Ottawa, Ontario
First name: Alain
City: Ottawa
State: ON
Country: Canada
Focus: Build
Status: Amateur
I am also not an expert. But I would just live with it. The radius is not that crucial on the back. If you have some doming you'll be fine. It's a learning experience.

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Alain
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PostPosted: Tue Jul 02, 2013 10:12 pm 
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Cocobolo
Cocobolo

Joined: Thu May 12, 2011 3:27 pm
Posts: 213
First name: Alex
Last Name: Takacs
State: Illinois
Country: United States
Focus: Build
Status: Amateur
I think that the guitar will be fine. I dont think that you need to try and repair it. Just continue building and the guitar should be fine, good luck!


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PostPosted: Wed Jul 03, 2013 7:49 am 
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Koa
Koa

Joined: Sun Sep 16, 2007 1:27 pm
Posts: 583
Location: United States
+1 on those thatsay you're fine. Keep building.

Dave


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PostPosted: Sun Aug 04, 2013 5:55 pm 
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Cocobolo
Cocobolo

Joined: Sun May 30, 2010 10:45 am
Posts: 233
First name: Michael
Last Name: Tulloch
State: Vermont
Country: USA
Focus: Build
Status: Semi-pro
The back will be fine.....it's not impossible that at a later date, after many more....you might repeat this again, but on purpose.

M.


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PostPosted: Tue Nov 19, 2013 6:46 am 
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Walnut
Walnut

Joined: Wed Apr 10, 2013 2:53 pm
Posts: 9
First name: Juergen
Last Name: Voss
Country: Germany
Focus: Build
Status: Amateur
Thanks for all the help. I just wanted to let you know that the guitar is finished. It does not sound bad (a bit of a lack of bass) but for the first one it´s I think ok. A few pictures to show my very first self build guitar


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


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PostPosted: Tue Nov 19, 2013 11:55 am 
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Koa
Koa

Joined: Thu Nov 04, 2010 1:46 pm
Posts: 899
First name: Freeman
Last Name: Keller
Focus: Build
Status: Amateur
Looks good - congratulations.


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