We built a toy similar to popular "marble track" sets which uses water flow instead. A peg board was created which several different features can be mounted on and interconnected with pieces of tubing. The toy is designed to help develop some intuition for fluid flow. The final version would ideally have a pump to automatically recirculate the water.
The pegboard was made by laser cutting 1/8" wood. All of the water course features were made by laser cutting 1/8" clear acrylic sheets which were joined with acrylic weld and hot glue. Features are then attached to the peg board with bolts and wing nuts. The end of each course feature has a small piece of silione tubing affixed to it. Additional lengths of tube and two-ended barbed fittings are used to construct different configurations. All CAD work was done using SolidWorks.
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