For my project I am looking for a strong hard as well even little elastic filament that provides grip like rubber on a metal surface.
I am trying to make a cnc suction cup that slides over a metal beam.
The cup which is sucked through itself and get clamped by the expanding beam when enabled is yet to slippery if printed with abs.
I thought of using PP but I dont know if that is grippy and I also consider using two different kinds of filaments in parts that later can be combined together by glue.
Below some pictures of the cup.