My father brought home this cheap plastic ( PA-GF or Nylon+Glass Fiber) trench-cutter that he broke in the intent of cutting a old branch, immediately i thought about replacing the gear part with a 3d printed one! The model is “Fiskars 112290”.
I used Reelfill’s PETG with 100% infill, 235°C extruder, 0.4 mm nozzle
Here are some photos and the STL if you need it, on the left you can see the broken part, the second one and the third one are 0% infill mock-ups and the final part (in glossy-transparent white) is the PETG one.
STL on thingiverse:
In the photo below you can see the assembled part in detail.