Knob for a mower. I designed it for my mower but it can be used for any sorts of application that require a hand tightening.

Print instructions

You have the gcode used in the files.

Supports
I added supports everywhere under the floating parts (not in it, only below the "wings"). So they stay easy to remove. See picture from PrusaSlicer.

Resolution
0.20mm SPEED (0.30mm would be good too).

Infill
30%, 40% or 50% like you prefer. I set it to 40%.

Filament
PLA ECONOMY White 1.75mm