Screws on to bottle like a bottle cap and ensures that the water drips at a slow but steady rate. To attach to the next bottle, thread zip ties through the three holes. Fits 3/8-inch tubing (if you’re using tubing to transport the water to the plants).
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3D Printing Settings:
-Low quality; 0.2 mm; 2 shells; 10% infill
Tested on MakerBot, Ultimaker, M3D Micro and Formlabs