Two-Stage Air-Powered Reaction Turbine

This two-stage air-powered reaction turbine is a fully 3D-printable PLA model built for compressed-air testing and STEM demonstrations. It is easy to assemble, smooth-running when tuned correctly, and uses glue on two parts for best performance and reliability.

This project is a compact, two-stage reaction turbine designed for compressed-air testing and educational demos. Unlike simple impulse wheels, this design uses two sequential reaction stages to extract more energy from the airflow, producing smoother rotation and higher efficiency potential at lower pressure ranges.

The model is fully 3D printable in PLA and built for easy assembly, tuning, and experimentation. It is ideal for makers who enjoy fluid dynamics, turbine design, and hands-on engineering projects. For best results, glue is required on two parts to ensure proper fit and stable operation.

Features
- Two-stage reaction architecture
- Fully printable in PLA
- Modular printed components for easier maintenance
- Lightweight rotor/stator geometry
- Great for STEM demonstrations and airflow experiments
- Designed for compressed air (not steam/high-temperature use)

Build Notes
- Material: PLA
- Adhesive: glue required on two parts for reliable performance
- Use clean, dry, regulated compressed air
- Start at low pressure and increase gradually while checking balance and alignment
- Always wear eye protection and keep clear of rotating parts
- This is an experimental model for learning and prototyping

Youtube link: