Introduction to the 3D-Printed Rubber-Band-Powered Catapult Toy Car Model

Non-printed Components: Two rubber bands   and glue (the fixing pins required for assembling the car are all made from PLA filament)
 
This is a fully 3D-printed, modular rubber-band-powered catapult toy car designed for model enthusiasts, DIY hobbyists, and parent–child interactive play. It’s a creative desktop project that combines both “play” and “display.”

To play, simply snap the car into the launch platform, stretch the rubber band to store energy, and press the colored button to release the stored energy, propelling the car forward at high speed. By changing the rubber band or adjusting the launch angle, you can modify the throwing distance and trajectory—making it ideal for tabletop racing challenges or as an elegant desktop decoration.