Recently purchased the Roborock S5 Max and I noticed it would be caught in one of the bedrooms which had a metal hammock with tubular frame. The robot would go over it and get stuck. You can set a no go zone, but I still wanted to have it clean that area still.
Roborock_S5_Max_Bumper_v2.stl - Shorter version
Roborock_S5_Max_Bumper_Extended_v2.stl - Longer version if someone might need it.
Updated both models to have a tighter fit so they would not move around.