Ukulele

I tried to mimic the characteristic shape of a Ukulele by adjusting spline handles in Solidworks. I am pleased with the result!

I tried to mimic the characteristic shape of a Ukulele by adjusting spline handles in Solidworks. I am pleased with the result!

Project Description

For my first project in my Music Instrument Design & Manufacture class I was tasked with building a Ukulele along with a partner. Most of the neck and fret board had been pre-designed and partially built by our professor, but the design of the resonating cavity was up to us to create.

I decided to design a resonating cavity in Solidworks that would mimic a ukulele shape using mirrored splines. Fine tuning the splines to match the characteristic shape of a ukulele was more difficult than I had anticipated, but I feel that I did a good job. Two pieces of laser-cut wood were used for the top and the bottom of the resonating cavity and the middle was carved out of red oak using a CNC. The outside of the red oak middle was manually carved away on a band saw using a pattern etched by the CNC as a guide. The three pieces were glued together and screwed into the neck to complete the assembly.

The resonating cavity was made of 3 different pieces of wood, as shown in this picture. The bridge for the strings was 3D printed.

The resonating cavity was made of 3 different pieces of wood, as shown in this picture. The bridge for the strings was 3D printed.

Lucas Schwartz was my partner for this project. Thanks Lucas!

Lucas Schwartz was my partner for this project. Thanks Lucas!

A render of the Ukulele before manufacture. The holes in the front of the resonating cavity were added to help direct sound.

A render of the Ukulele before manufacture. The holes in the front of the resonating cavity were added to help direct sound.

I used the X-Carve in Tufts’ Nolop Makerspace to make the center of the resonating cavity.

I used the X-Carve in Tufts’ Nolop Makerspace to make the center of the resonating cavity.