A demonstration model showing 3 different ways you can make your prints grippy - knurling, fuzzy skin, and contours.
The model includes a 2nd part which you can use to define the area for the fuzzy skin.
Download, print, and experiment for yourself!
See my Instagram post for more info https://www.instagram.com/p/C8XVrY2sa3q/
The author marked this model as their own original creation.