Bottle Vortex Coupling
thingiverse
Modified to make coupling for two liter bottles. My Pre-schooler loves making a vortex with one of these at school, so I made this model. Printed in PETG & works well. No leaks. Print Settings Printer Brand: Prusa Printer: Prusa Steel Rafts: No Supports: No Resolution: 0.2 Infill: 50 How I Designed This Imported to tinkercad, bored hole in top, merged flipped copy.
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