3mm Filament Clip

I have been using the original clip on various spools. It fit some early ones I had but doesn't fit well on anything from Makergeeks (which I have a lot of) nor various other sources. So I tweaked it up because I got tired of the old ones falling off the newer spools.

I have tested them on the following spools:
MakerGeeks (newer)
3 Different Chinese import spool types
MatterHacker (older)
FormFutura (older)

Do not fit or at least don't hold well on:
MakerGeeks (some older, he seemed to use several spool suppliers a few years ago)
MatterHacker (newer)
FormFutura (newer)
T-Glase small reels

It can be made to fit MatterHacker newer ones by extending the locking tab because the spool rim is longer than MakerGeeks. The rim thickness is the same between the two so it should be an easy mod.