Bottle Tornado / Whirlpool Coupler

prusaprinters

<p>This adapter is used to join two PET bottles together to form a water tornado. &nbsp;Fill one bottle with water and then use the adapter to join the bottles. &nbsp;Flip the bottles over like an hourglass and give the top bottle a bit of a shake in a circular motion, the tornado/whirlpool effect should start.</p><p>I've included two versions of the coupler, one with a larger opening and one with a smaller opening to slow down the flow. &nbsp;Using the smaller opening version will produce a longer-lasting tornado effect.</p><p>I'd recommend a 0.4mm nozzle for the print. &nbsp;No supports are necessary. &nbsp;Depending on your setup, you may need a skirt though. &nbsp;Use a small layer height (&lt;0.12 mm) to get nice details on the threads. &nbsp;Enjoy!</p>