A box for the Brazilian MD model was closed. I applied two coats of Shellac inside the box. This is a moisture protection purpose. Tap tone from the closed box showed very good potential of the sound quality as usual. Tap tone showed very long sustain that is approximately 1-second.
Next step is the neck blanks making. After complete the neck blanks, I will be back to the detailed work for the body making.
Lining and carbon rod installation work were done. I have been using solid lining for the top side, and slotted conventional lining for the bottom side. Solid lining is required for the top side, because the solid lining has better rigidness to support the sound board. This improves the sound crispiness.
I also installed two carbon fiber rods from in between the neck block and the bottom side of the body waist. Those carbon rods are for body deformation prevention for avoiding future neck re-setting work. Also those carbon rods improves sound quality, because the neck join to the body has better rigidness due to the carbon rod support.
There is no black magic to make good tonal quality for an acoustic guitar. I put together many small differentiations into one guitar package. That is why custom guitars are better than factory made guitars.
Neck block, tail block, cut-a-way block, and armrest block are installed. All blocks are made from Honduras mahogany except the armrest. Grain direction is important. I glued four Mahogany pieces to make just like a neck heal section. This grain direction makes the best stability for supporting the side at the neck joint. However, this cut is a bit difficult to shape the neck block for fitting the side, because I have to cut cross grain. If I use a well shaped plane blade, the block shaping work is very enjoyable.
Cut-a-way section installation is a tricky game. I am using my custom made fixture and shock codes. This technique works very well.
Armrest is made from five piece of Spanish cedar those are leftover from the neck making. Armrest block installation is also very tricky, because of the shape. I made custom cauls those were fitted for the armrest shape. Using those custom cauls, the armrest is able to glue without glue voids.
Next step is carbon-fiber rods installation in between neck block and the side for the neck support stability improvement.
