Ender 3 Filament Spool Stopper

thingiverse

I crafted this to nestle perfectly into the spool holder that comes standard with the Ender 3. Upon closer inspection, I observed a slight lip at one end, prompting me to add an extra safeguard to keep my filament securely in place on the printer. This design remains compact enough to still accommodate spools over the cap and sit atop the tube.