Thumb Screw Cover for Filaments.ca EconoFil™ Injection Molded Master Spool

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Check out this video: https://vimeo.com/322918738. This adapter is a straightforward solution to cover the thumb screws extending from the Filaments.ca EconoFil Refill Injection Molded Master Spool. Some users have mentioned that these thumb screws can sometimes get caught on certain types of spool holders, which prompted the creation of this simple fix. Quick and easy print with no supports required. To attach this adapter to the master spool, simply place it over the screws, apply some pressure, and twist clockwise. To remove it from the spool, apply pressure and twist counter-clockwise.