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xray
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how to

Post by xray » Wed Aug 12, 2009 5:25 pm

just a thought for a future build. Does anyone have an illustartion of the bracing pattern for a guitar that displays an alternate soundhole or multiple soundholes such as the kind that are close to the edge of the upper bout? im wondering whether the standard x bracing has to be reinforced where the standard soundhole goes or nothing at all. What i mean is illustrated in this pictue below but im more interested in what underneath looks like on the soundboard.
Image

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Dominic
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Post by Dominic » Wed Aug 12, 2009 6:35 pm

Hi Ray, I think the soundhole led to the X brace and not the other way round so if you move the soundhole you don't need to use an X anymore.

You should be able find Ovation bracing on the net. I've come across it before but can't remember where.
have fun experimenting.
Dom
You can bomb the world to pieces,
but you can't bomb the world to peace!

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Bob Connor
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Post by Bob Connor » Wed Aug 12, 2009 7:38 pm

Not the greatest sounding instrument ever made though. :?

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Bob, Geelong
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Allen
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Post by Allen » Wed Aug 12, 2009 8:18 pm

Matt's Kasha braced Tenor Uke has the soundholes in the upper bout. You may be able to do something along those lines.

Denis Lehay also has built an instrument with sound holes in the upper bout. He might be able to help out.
Allen R. McFarlen
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kiwigeo
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Post by kiwigeo » Wed Aug 12, 2009 8:30 pm

Ovation...yuk!!

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Matt_Blacka
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Post by Matt_Blacka » Thu Aug 13, 2009 2:41 pm

The Kasha bracing pretty much isolates the upper bout treble side from much vibration and sound production due to the treble confinement bars. This makes the upper bout a really good spot to put some soundholes through, as you're not wasting any active soundboard area. The same can't be said for the bass side upper bout though, as the bass tone bar runs right up there.

I just used a cross grain spruce patch in the area of the holes, made so that the holes in the patch were slightly larger than the holes in the soundboard so that it couldn't be seen from the outside. A thinner hardwood patch might be a better option?

Matt
MAKAIO Ukuleles
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mtracz
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Post by mtracz » Sat Aug 15, 2009 11:14 am

I can't read the text but a great collection of images. Hope this helps...

http://ovation-marenostrum.blogspot.com ... zioni.html

_Mike

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