Bathroom drain cover

This is a drain cover for bathroom floor with radius of 150mm and thickness of 3mm.
It's reinforced on the bottom side with another 10mm (reinforcement is 110mm radius).
There is a groove on the reinforcement wall for easy adding of a odor filter with a rubber band and a piece of cloth.
I suggest a 40% infill and a thick ~6 layers bottom and 4 layer top, so it can endure standing on it