3D Marble Maze in a Water Bottle

thingiverse

This is a 3D printed maze that fits inside a 1 liter Smart Water brand water bottle. It is designed for a small ball bearing. The one I used was about 9.5mm. If you can't find one similar, you can simply 3D print a sphere. I printed the object vertically with full supports. It was a fair amount of work removing the supports after printing, but I really like the look of how it turned out. Version 1 was the white print you see actual photos of. Version 2 hasn't been printed yet. I had hoped the bore hole down the center would save weight and print time, but it also made the print not stick to the bed without a raft. Version 2 is a much better MAZE. V1 is way too easy as a maze. I used https://www.mazegenerator.net/ to create the initial maze, but at that time, I was focused on the 3D modeling, NOT how challenging the maze itself would be to run the marble through!