Angle and direction effect on the performance of manual music box with PLA-base manufacturing using 3D printing

Musical instruments keep evolving every day. Nowadays, there is a lot of modification that differ new instrument from its predecessor. From the material used to the method to manufacture, the musical instrument now has a wide range of possibilities. One of those methods is additive manufacturing or 3D printing which is a widely researched manufacturing method. This study focused on several 3D printed slanted base structures of a hand-cranked music box, an old musical automaton that commonly made out of metal and actuated by hand, that evaluated by recording its sound from five directions then analyzing produced waveforms. The results show that the best model is the 60-degree slanted model with the direction from the above and front side where in general, the angle and direction of the recorded have small contribution to the sound performance from the music box.