Gears for Fischertechnik applications.

I made 3 different models. The gears are drawn with Autodesk fusion 360. I use the add-in function to create correct gear profiles. The gear pressure angle is 20°. I use a backlash of 0.1mm, this because during 3D printing the dimensions are always a bit larger. All sizes are drawn and tested for the Flashgorge Finder 3D printer with standard settings and a fill of 25%. I always use the Brim option and use Pelikan prefix Stick glue. Because the Flashforge Finder doesn't have a heated bed I let t