I have on of those 2 stroke single stage snow blowers with a manual snow shoot angle setting and this is a knob to lock the angle down.

Prusa

Prusa Mk2

No

Yes

.2mm

75%

ABS
3600mm/min
Extruder 255 Degrees C
Heat Bed 100 Degrees C
No Cooling Fan
6 Top and Bottom Layers
2 perimeters

If you can control Infill on different height, I used this:
0mm-13.52mm Height settings:
Infill 75%
13.52mm +Height settings:
Infill 50%

If not I recommend 75% all the way.