Overture Paper Spool Inserts are used to keep the paper dust that is created when the roll turns. They are small and easy to fit. When printing I made mine at 101.75 scale and that was the best size for me. I would not suggest below 101 or above 102 scale. If you like a press fit 102 is that size. The STL is at 100 scale and the gcode and 3mf file are already scaled at 101.75. I hope this helps the community and happy printing. 

I am in no way affiliated with Overture and this is not an official product of Overture. These files are provided as is and without warranty.

42 Labs 3D created the files