Crude Educational Pet Water Bottle

thingiverse

As a kid, I used to be fascinated by pet water bottles and how they stayed upright without spilling a single drop. To help little ones understand the magic behind these clever containers, I designed this interactive model. You can 3D print the ball and lid using TPU, while the container is best printed in PLA. Once you've finished printing, insert the ball into the tube's inner facing part and fill it with water. Next, place the lid on top - do this over a sink, as it may leak slightly at first.