A basic gear knob that fits on the Logitech Driving Force Shifter. I have printed with PLA-CF but should work with other filaments no problem. it is a tight fit but does go on with some force.
Settings:
Strength:
Top/Bottom Surface Pattern = Concentric
Sparse Infill Density = 50%
Sparse Infill Pattern = Rectilinear
Other:
Bed Adhesion:
Brim Type = Outer Brim Only
Brim Width = 10mm