https://www.instructables.com/A-Practical-Guide-to-FDM-3D-Printing-Gears/
https://www.unionfab.com/blog/2024/12/3d-printed-gears
https://makertales.gumroad.com/l/PrecisionGears
https://www.stlgears.com/generators/3dprint
Lower pitch angle: 10 deg
Lower pitch angle: 10 deg and Module 2.4