Self-Watering Hex Planter

The Self-Watering Hex Planter is a self-watering planter you print yourself. The outer pot is a water reservoir of about 147 ml. The inner pot holds about 170 ml of soil; a cone of soil reaches down into the reservoir and acts as a wick, so the plant draws up water by itself.

A floating stick shows how much water is left: it rises 23 mm when the reservoir is full. You top up through a 12 mm fill tube at the rim, without lifting the plant.

• Outer pot: 102 × 98.7 × 115 mm, max. diameter 103.6 mm
• Reservoir approx. 147 ml, soil approx. 170 ml
• 12 mm fill tube and float water gauge
• Three parts: outer pot, inner pot and float
• No supports, digitally checked for printability

Print tips: use PETG, 3 walls and at least 5 bottom layers so the outer pot and float are watertight. Print the outer pot floor-down, the inner pot upside down with its rim on the bed (as oriented in the file) and the float upright. Optionally change colour at 105 mm for a coloured tip. Test the float in a glass of water first.

Assembly: place the float in the corner of the outer pot, lower the inner pot with the stick through the thin tube, and fill through the wide tube until the stick is about 2.7 cm above the rim.

The same twisted hexagon as the Twisted Hex Planter and the Hanging Hex Planter. You get three STL files and one 3MF.