Spool-Less filament adapter

A spool-less filament adapter so you can reuse the any spool, even the ones that Elegoo publish that is cardboard and non-detachable, you can remove one side of the roll, insert the spool less filament, place the side of the roll back, and screw in the adapter here. Edit: the V2 version adjusts the size of the adapter/thread to make it smaller, for larger roll holders that some printers have.

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