April 25, 2026
Description
Bring airflow to life with this working three-stage air turbine, designed to
spin from a simple balloon setup. With cambered blades and a pressure-regulated
inlet, it delivers smooth, satisfying motion in a compact printed build.
This three-stage air turbine is built to impress: fast to set up, fun to run,
and great for showing real turbine principles in action.
Each stage uses cambered blades to capture airflow efficiently and keep the
rotor moving with strong, consistent response.
Power comes from a front balloon attachment, so you can run the turbine almost
anywhere without extra equipment.
In testing, this setup achieved up to about 20 seconds of runtime from a single
balloon charge.
The included two-part adapter system helps extend performance: the balloon sits
on one adapter, which connects to a second adapter with a small regulating hole.
That controlled restriction smooths pressure delivery and helps the motor run
longer and steadier.
Whether you are a maker, student, teacher, or engineering enthusiast, this
model is an eye-catching way to explore airflow, staged energy extraction, and
mechanical design through a hands-on print.
You Tube link:
License:
Standard Digital File License