The materials used in this build are PLA, PETG, TPU, double sided tape and cyanoacrylate (super glue). The button housing, On/Off button, and red button were printed using PLA. While the internal button is printed using TPU with no perimeter walls to allow the infill pattern to behave more spring like. The geometry and material properties of PETG allow the 3D printed spring to behave similar to a metal spring. Will be uploading the spring by itself in more detail.