The cardboard spool is deformed during transportation.
The cardboard spool is deformed due to accidental drop.

Download the .stl file of the filament ring.
spool_bracket.stl
Print a pair of filament ring using your printer.


It is recommended using PETG for printing.
If the filament ring is too tight to be installed, change the X-Y hole
and contour compensation to 0.1 mm via the slicing software.

Use a filament ring to repair deformed filament spools:
https://elegoo-supportcenter.oss-us-west-1.aliyuncs.com/Filament Ring 10-31.mp4