For best results, use a sparser (15%) infill for the base and a denser (50%) infill for the drying rack sticks. The included 3MF and gcode files do for you.
Inspired by Test Kit Station - API Master Test Kit by SamSkellSkell, but I don't care to store the test kit bottles with it so mine is just for testing and drying, as shown in the photos.
Designed in OnShape so you can get the CAD version here.
The author hasn't provided the model origin yet.