October 16, 2025
Description
A simple 3D printed windmill model designed to demonstrate wind movement.
The model consists of four curved cups mounted on a central hub and can freely rotate when exposed to airflow.
Perfect as a STEM educational project, wind speed demo, or just a fun desk gadget.
Layer height: 0.2 mm
Infill: 20–30%
Material: PETG
Supports: Needed
I recommend dripping a little oil into the joint between the rod and the blades for better rotation.
License:
Creative Commons — Attribution — Noncommercial — Share Alike