Filament Spool Clip

After downloading a filament clip and liking the ability to not have to use the nearest hole in the spool I decided to leave it on the spool. All went well for a few prints until one that failed...the clip had caught the filament and stopped it rotating.

My version has a 2mm hole and the inside edge of the clip is tapered to prevent binding during printing. I didn't want to keep removing the clip, only when the filament is used up.

All I print at the moment is colorFabb XT-​CF20, it's light, stiff, strong and I'm getting great results with it.

Version #2 doesn't move on the spool as much
Version #3 is tapered front to back so it doesn't jam on the top cover of my Qidi printer as the spool rotates which prevents filament being fed. This is my preferred version.