I made the replacement part for the lever on the lawnmower because the original one was broken.

I printed my component in PC. 
Here are the print settings I used for PC:

0.10mm layer height
4 perimeter
8 top and 7 bottom solid layer

Infill 15% Gyroid                                                                                                                          

No Supports

For extra stability I used pins.

Cylindrical pins:

1x Ø4 x 14
1x Ø4 x 25
1x Ø5 x 50

Srew:

1x M5 x 65