Button

thingiverse

To create a sturdy four-hole button, print it with at least 50% infill and opt for honeycomb design for maximum strength. For higher infill rates of 75%-100%, use if you have extra material. This is crucial to avoid any mishaps in public. Note that when saving the file in STL format, minor issues may arise due to conversion from Nurbs to triangles; however, these are usually insignificant in high definition models.