Made this so i can cut a plastic spool, move filament from a cardboard spool by sliding accross and then rejoining.
Recommend not cutting the plastic spool straight and doing it at a angle/messy to act as a key when putting the spool back together.
Only tested on the Geeetech PETG spool so far.
New version updated with matching tool to help screw/unscrew.
The author marked this model as their own original creation.