Filament Spool Plug for Atom 2.5 EX

2017/03/01 A plug to firm the spool for Atom 2.5.
Demo: https://youtu.be/0SsX0KAM1TE
2017/03/03 If the spool is really small, try the small version.
2017/03/07 Update: shorten the nose to cover narrow spool(500g Atom Spool).