Wednesday, May 2, 2012

Ukulele Day 08 Bracing

After we finish top, back, we'll attach the top first.
Here we check the top lining and find out that there is defect near heel block.
Thus, we use hand saw+chisel to remove this small piece out and glue a new one.






Then, we'll start bracing part.

Measure the four sticks.

Resurface lining with sphere template (15 degree sphere).

Here is the result of sanding with sphere template

Smooth the center line by sanding , with curved block.




Measure the bracing position on the back, mark that position.
Then, we use cutter to remove some part of center line so that the new bracing sits perfectly on the back.








Then, we outline the curve line on bracing and sand it out.
(outline this line by comparing with sphere template)




Mark the bracing position on sphere template, then we sand this bracing at this particular position.


Test....we expect snug fit.






Continue with top bracing.






Then, we measure the bridge position.


From the specification, this soprano ukulele uses scale 25.5"
Start the fret 1 of ukulele at fret 11th of 25.5" scale.
On the other hand, we can say that the conventional ukulele captures only fret 11-fret23 of guitar.


The position of bridge is the same distance from top line to nut.


Then, we glue bracing with back, top















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