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Engineering Design

3D-Printed Wind Turbine

A compact turbine optimized for power and stiffness

UC Berkeley Engineering 26 · 2024 · 125 words · 1 min read

01

What

Project scope

A small-scale turbine developed under strict volume and manufacturing constraints, combining NACA airfoil research, a lightweight two-piece tower, FEA, and physical power and deflection testing.

02

How

Technical approach

SolidWorks · FEA · SLA 3D printing · Airfoil design · Power testing

03

Why

Outcome

The project connected aerodynamic choices, structural analysis, and measured power output in a tightly constrained physical build.

Key evidence

Peak power850 mW
Tower stiffness10.89 N/mm
Tower mass266.3 g
3D-Printed Wind Turbine project cover

Process 01

Tower design

The tower had to fit a 17 cubic-inch volume limit, place the rotor hub at the required height, and print as two pieces within the available machine envelope. SolidWorks lofts, a high-area-moment cross section, and FEA-guided material removal produced a light, printable structure that remained stiff under load.

The assembled two-piece ABS tower before rotor installation.

Process 02

Blade design and testing

NACA 4424 and NACA 63-415 profiles informed the blade geometry. The finished turbine was tested at approximately 25 mph while voltage, current, power, rotational speed, and tower deflection were measured and compared with simulation results.

A printed blade set used during build and validation.

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