Arduino gearbox motor gear

The motor gear inside the gearbox breaks often due to overload.
Here is the replacement.

No need of glue, fits tight.

As small gears are hard to print, here are my settings:
Printer CR-10
Nozzle 0.30 Multiplier 1.0 Extrusion Width 0.30
Layer Height 0.1000 Speed 3000 mm/min
Infill 75% Raft Yes

There is a g-code file included.