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GAL plan #55 1937 l-00 question On bracing radiuses.
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Author:  Wes Paul [ Fri Apr 22, 2011 6:00 pm ]
Post subject:  GAL plan #55 1937 l-00 question On bracing radiuses.
I am building an l-00 off of this plan. It says the top is arched 3/16" from side to side. It's pretty vague. Can anyone recommend radiuses for the top and the back braces?
And if the upper face brace should be a diferant radius than the x brace?

Thanks
Author:  Link Van Cleave [ Fri Apr 22, 2011 8:31 pm ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
I made mine 30' radius for the top. I used a dish and radius-ed everything to 30'.

L.
Author:  jmcphail [ Sat Apr 23, 2011 9:08 am ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
The Grellier plan lists the top radius at 28' and the back radius at 15'.

This is of interest to me, I am planning my first build using the same plans you are, thank you for posting your question.
Author:  Bailey [ Sun Apr 24, 2011 6:01 pm ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
MY last 2 L-00s were within Todds suggested radius.

You will love this guitar.

They are my favorite builds so far.

Kent
Author:  jmcphail [ Sun Apr 24, 2011 6:17 pm ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
Pardon my noob question, what is the sonic effect of having more or less radius on the top, and on the back?

Or suggest some required reading, I'm open to anything.

-John
Author:  Wes Paul [ Mon Apr 25, 2011 10:24 am ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
Thanks for the input fellas! Always a big help I don't know how they did it before this forum.

Do you use a radius dish? If so then you would make a mold and radius the top and back of the sides and then glue them on?
I have only used the Cumpiano method of building on a work board.
Author:  Pat Foster [ Mon Apr 25, 2011 11:53 am ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
Wes,

Here's a link to an L-00 I built recently. MIght be some information there you could use.

http://www.patfosterguitars.com/brwl00/index.html

Pat
Author:  coach [ Mon Apr 25, 2011 7:12 pm ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
Wes Paul wrote:
I am building an l-00 off of this plan. It says the top is arched 3/16" from side to side. It's pretty vague. Can anyone recommend radiuses for the top and the back braces?
And if the upper face brace should be a diferant radius than the x brace?

Thanks


I used the same plan. I used a 30' radius dish, and did radius the ufb to the same. I can't remember what the brace above that is called, but I did not radius that, and did not radius the heel block, but glued both flat. I used a mortise and tenon neck joint and my fret board glued to the top nice and flat with no hump, and with no significant drop at the upper frets. It was my first build.

Sean
Author:  Darryl Young [ Mon Apr 25, 2011 9:53 pm ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
jmcphail wrote:
Pardon my noob question, what is the sonic effect of having more or less radius on the top, and on the back?

Or suggest some required reading, I'm open to anything.

-John


Since no one else has answered I'll point out a couple of things. The more a top or back is radiused, the stiffer it becomes. A top that's too stiff can sound tight. Some folks think you can add a radius and it allows one to use either lighter bracing or a thinner top.......so overall you have a lighter top with the same stiffness. One benefit of a radiused top or back is that it can flatten (reduce the radius) when exposed to low humidity......so there is less chance of splitting compared to a top that started out flat in normal humidity and was then moved to low humidity. I would venture a guess that most use a radius to reduce the chance of splitting when the wood moves in low humidity.
Author:  jmcphail [ Tue Apr 26, 2011 6:34 am ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
Thank you Darryl.

I have a lot to learn, but a little less now with your reply, I appreciate it.

-John
Author:  Wes Paul [ Wed Apr 27, 2011 10:32 am ]
Post subject:  Re: GAL plan #55 1937 l-00 question On bracing radiuses.
Pat thats a beautiful guitar! Thanks for the link! Very helpful.

Sean do you have any pics of your build?
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