Anet Filament Spool Holder Modification

Don't want to redesign your spool holder just yet? Great, this is the file for you.

Two of these prints are required and they snap into the center hole of a filament spool. The print moves the axis of rotation away from the edge of the spool and towards the center. This allows for easier rotation and less strain on the extruder.

I'm not sure if spool sizes are universal so I will note that this one was designed around the diameter of an inland PLA spool