Self Watering Bonsai Planter with a 300ml internal capacity enough to go a week without watering your bonsai tree.
The single-piece design prints in place, no need for supports, rafts, or brims! All internal architecture is built-in.
The design is minimalist, and has a watering hole which doubles as a visual indicator of the water level inside the planter.
I've also inserted rolled cotton fabric (5mm cotton string also works) into the holes to aid with the capillary effect. As the soil dries, it sucks up water from the reservoir below. See the image below for reference:
https://makerworld.com/en/models/428240#profileId-332327