Kohei Fujii Guitars

Kohei Fujii Guitars

Sunday, August 10, 2025

Neck making part 2

     It been out of my work shop for two weeks. I had broken bone in my right leg. I got three locations of bone fracture. It was my Windsurfing accident.
Luckyly, operation for the broken bone is completed, and I am back to my work shop. My walking ability is limited, and the guitar making activity is slow now.

     I completed the neck joint fitting work. I also, completed the screw install to the neck. Neck joint requires a precise alignment for the neck angle for the strings action and the neck angle for the guitar center line. The ideal guitar neck joint for the center line is not straight. An extended neck center line is approximately 2.5mm off to the treble side. The other technique is to move the bridge location approximately 2.5mm to the bass-E side. Both techniques are for preventing the high-E string falling issue. 
     This design project has an elevated neck design. This neck is approximately 11mm elevated at the neck joint. Also, the fingerboard extension from the neck joint is isolated from the sound board. To make the solid fingerboard extension, I installed two 5x7.5mm carbon fiber reenforcement rods. Then, I installed the fingerboard. I have been using epoxy for the fingerboard install. Franklin Wood glue makes good bond for the fingerboard install. However, the wood glue makes neck reverse bend (anty bow) due to the moisture. For the precise neck bend controll, Epoxy glue is the best for the fingerboard install. 

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