$96 3D-printed rocket prototype demonstrates low-cost aerospace innovation, leveraging consumer electronics for trajectory recalibration. The system integrates a $5 sensor alongside an ESP32 flight computer and MPU6050 inertial measurement unit, enabling real-time adjustments during flight. Designed in Fusion 360 and tested via OpenRocket simulations, the project prioritizes accessibility for hobbyists and educators.

The rocket’s launcher employs GPS, compass, and barometric modules to stabilize mid-air orientation, while folding fins and canard stabilization reduce material costs. A detailed bill of materials reveals the $96 total hardware expense, with the sensor constituting just 5% of the budget. Open-source firmware and mechanical CAD files are publicly available, fostering collaborative development.

This proof-of-concept highlights the potential of 3D printing and microcontrollers in democratizing rocket engineering. By replacing traditional components with off-the-shelf parts, the project lowers barriers to entry for amateur rocketry. The team emphasized iterative testing, including mechanical adjustments and launch simulations, to refine stability and reliability.

The system’s consumer-grade components—like the ESP32 and MPU6050—showcase how hobbyist tools can tackle complex aerospace challenges. While not intended for commercial use, the prototype underscores the growing intersection of DIY innovation and advanced engineering.