Mini Rubber Band Pool Racer – PaddleWheelSpeedboat

Mini Rubber Band Pool Racer – Paddle-Wheel Speedboat This is not just a boat that floats—it is a functional pool racing toy powered by an ordinary rubber band! The separate paddle-wheel motor converts the stored energy of the rubber band into forward movement. Wind the paddle wheel, place the boat on the water, and release it to start the race. No batteries, electronics, or special hardware are required. Print several boats in different colors, give one to each player, wind every motor by the same number of turns, and launch them together. It is a simple and interactive pool party game that can be enjoyed as a speed race, distance challenge, or accuracy competition. Lightweight and Fast to Print The complete boat and motor require only: Approximately 10 g of filament Around 1 hour of printing on the Bambu Lab A1 mini One ordinary rubber band The low material usage and short printing time make it easy to create a complete colorful racing fleet for a pool party. BOM 1× printed speedboat 1× printed paddle-wheel motor 1× small rubber band How to Play Install the paddle-wheel motor in the boat. Rotate the paddle wheel to wind the motor. Place the boats behind the starting line. Release them simultaneously and let the pool race begin! Different rubber bands and winding counts can change the speed and travel distance, allowing players to experiment and find the best racing setup. Designed specifically for creative water play, friendly competition, and summer pool parties. Adult supervision is recommended whenever children play near water. More of my print-in-place designs: 👇