This was inspired by the excellent "Perfect Filament Clip" model, found at https://makerworld.com/en/models/47210#profileId-49153

In this model I used the above as inspiration (I have been using those clips on almost all of my spools), however I have added a small bend radius to one of the clip channels.

This addition certainly goes against one of the design goals of the original, i.e. "no filament bend - hate this", however in my view a (very slight) bend is acceptable and hopefully has the benefit of holding on (slightly) tighter with clips from different print batches, with different source material and deployed to different filament spools.

... And this outcome has certainly been seen on my spools, in my usage.

I have not tested other filament clips with bends before going down this route and certainly have not searched far and wide before doing this. I guess by now I have "clip printing fatigue" so just wanted a working model with my slight/radial adjustments.

For the supplied 28 clips print, with a non-Bambu PLA, the filament required is 24.72g. This works out to slightly less than 0.89g per clip with default settings.

Notes on the models: In addition to the .stl models and the .3mf files, I'm also sharing the original .scad model file - this requires BOSL2.