A decorative knob made to resemble a spool of filament, no supports needed. There are 2 .stl files for the knob stem, one will fit M4 screws and the other #8-32 screws. On my printer the “filament” ring is a pretty snug fit over the spool top, you may need to do some slight scaling if it is too tight on your printer. Example pictured is printed in Bambu Labs PLA.
The author marked this model as their own original creation.