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Cnc`ing sides,back and rear bracing in one go.
http://mowrystrings.luthiersforum.com/forum/viewtopic.php?f=10106&t=26865
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Author:  jeremy budgen [ Tue Apr 06, 2010 12:21 pm ]
Post subject:  Cnc`ing sides,back and rear bracing in one go.

Has any tryed this before as i am think of doing it for a standard accoustic with a spruce top.

Thanks in advance

Jeremy

Author:  npalen [ Tue Apr 06, 2010 3:21 pm ]
Post subject:  Re: Cnc`ing sides,back and rear bracing in one go.

http://www.guitarrasjaen.com/English%20 ... Feder2.htm
Jeremy, Fernando does something similar to what you mention when carving archtop top plates.
The first question, of course, is brace strength when running perpendicular to the grain.
I would think that a thin strip of carbon fiber bonded to the braces after machining might address this issue.

Nelson

Author:  Parser [ Tue Apr 06, 2010 7:48 pm ]
Post subject:  Re: Cnc`ing sides,back and rear bracing in one go.

I'm sure it would work - it's just a lot of wood to cut out of there! I bet it's still quicker than bending sides, bracing, etc.

I've built unbraced carved backs before - they worked out pretty well. No structural issues & they sounded good too. It does add some weight to the guitar.

Sounds like a fun project...!

Trev

Author:  jeremy budgen [ Wed Apr 07, 2010 7:02 am ]
Post subject:  Re: Cnc`ing sides,back and rear bracing in one go.

Thanks guys, i thought that someone had done this before.

I might give it a try soon after other work is completed, i will post pics when i do and let you know how strong it is.

Oh buy the way does anyone else out there have a biesse cnc machine as i do, if so can they let me know of there projects that they have done.

cheers

Jeremy

Author:  Sheldon Dingwall [ Thu Apr 15, 2010 2:21 pm ]
Post subject:  Re: Cnc`ing sides,back and rear bracing in one go.

I did this on a bass and it was HEAVY. Plus as Trev mentions it wastes a lot of wood.

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