Ender 3 V2 (and similar) knurled knob, just stronger for weak filaments. Also rounded fingertip divot.
thingiverse
Loved the original knob design and it printed great with regular PLAs but I wanted to use this gorgeous but kind of fragile silk PLA, and it's too weak for the original design. So I bulked it up a bit with support blocks and while I was at it decided I wanted a rounded fingertip divot rather than a flat one. That's not "better," it's just my personal preference.
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