Just Another Filament Clip 2.85 mm

youmagine

This robust clip is incredibly sturdy, boasting an impressive 0.8 mm wall thickness freshly printed from my machine. It may be slightly too aggressive for your filament, but I can confirm that it's perfect for true 3 mm filaments. If you're unsure, try scaling it down and see how it works out - even a modest 0.4 g difference is hardly significant.