Harmonographs: Using the build-design process to improve functionality

This paper presents the build design process used by students at Lincoln University to recreate an 1800's model of a harmonograph. One model of the harmonograph was tested and did not produce the desired visual outcome as expected. The second model was redesigned and will be built using 3D printed parts. The second model should improve reliability of the machine and students' understanding of physics and mathematics principles related to the actions of a pendulum.