Back making

     Back making is done. Back center strip is Ebony with Black-White border. Back bracing is made by Red spruce. My back thickness is approximately 2mm. Therefore, the very thin back requires the lattice bracing to make a nice continuous doming. Traditional ladder bracing requires a relatively thick back board thickness to create smooth doming. When the thick less is less than 2mm, the Ladder bracing start distorting in between braces. Unlike the ladder bracing, the lattice bracing has many advantages. Lattice bracing is also lighter than ladder bracing. Light weight is another advantage for me. Only negative side is more time consuming for the lattice bracing. Also, the lattice bracing installation requires the vacuum clumping to apply even pressure.
     Next step is the side making. I will use laminated sides using Yellow ceder. I also use Epoxy laminate technique.

X-Bracing

     I completed X-bracing based top making. This bracing design is for the SSJ model. This top bracing work has not been done for scaropping work. Bracing material is the Adirondack spruce and Madagascar RW for the bridge plate. Brazilian RW is the best for the bridge plate; however, due to the limit-ted availability, I have been using the Mad RW.
     This page also shows Nylon top using the Balsa wood lattice with Epoxy Carbon fiber laminate. This top is for the Classical guitar. Classical guitar has more modernized design than Steel-strings guitar. We should say that Steel-strings guitars are classical, because from a view point of guitar design and structure evolution, Steel strings guitars has not been changed since the X-bracing was invented by Martin Guitars.

Lattice Bracing

For the Jazz Nylon model, I installed lattice bracing. This time, I used the Balsa wood for bracing. Bracing weight is only 8 grams before shaping. This weight is approximately 3-times lighter than Spruce based lattice bracing. After shaping the Balsa bracing, I also installed Carbon fiber filament using Epoxy. Additional Epoxy weight is approximately 2-grams. So, the Carbon fiber laminated lattice bracing top has super light weight. Top material is Spruce and thickness is between 1.3mm and 2mm depending on location. Although the top has super thin profile, Epoxy Carbon laminated top is super strong and stable against climate change.

Next week, I will work for the X-bracing for the steel strings model.