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2020-09-03

Prepare for Close Box


20200627
The side braces are ready to be glued.
In the preparation of the side braes, my saw teeth was destroyed.
To glue the side braces, they need to be inlet into the lining or peones itself.
This is to prevent the side braces from exerting weakness on the sides as it is basically a cross brace on the sides.
Luckily this is ABW which is a very stable wood.



Saw teeth destroyed by the preparation of the side braces


Side braces prepared


Inletting the side braces


Inletting the side braces


Inletting the side braces


All side braces prepared and inletted


Ready for gluing


Gluing starts


Side braces all glued


Side braces all glued


20200704
Next is to prepare the backing for the sound port.
One thing have to be sure is not to mess up the position of the sound port.
It should be done at the side facing the player i.e. bass side.
Although one can argue to open 2 holes, but more sound port will cause degration to the low response of the sound.
So need to limit how many and size of sound port open.

The veneers were glued to the back of the position of the sides where the port will be opened.
A curved caul was made to ensure the veneers are clamp properly.



Gluing the backing for the sound port


Gluing the backing for the sound port


20200711
Next will be the cutting of the sound port itself.
The commissioner of the guitar prefers to have a star shape sound port
So but the problem of having a star shape is that it's not symmetrical.
So there need to be some form of orientation.
So I was deliberating the orientation of facing the player or straight with respect to the guitar.
Finally decision was to take reference to the guitar.

The hole was cut and file to shape nicely.



Facing the guitar.


Facing the guitar in player's viewpoint


Facing the player (at player's viewpoint)


Facing the player when straight


Sound port cut. A sneek preview of the elevated fingerboard geometry


Close up of the sound port


Closer view


20200903
I glued the tornavoz to the top also.

Glue the tornavoz to the top and support with peones


Tornavoz sanded


Added one more side brace at the end block to increase the total side brace weight to be about 400g

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