AeroMill – Cooling Fan & Storage Box in One

🧩 Model Description

AeroMill is a functional and decorative 3D-printed model that combines the charm of a traditional windmill with a practical, hand-powered cooling fan and a hidden compartment for storage.

Whether used as a mini desk fan, a small organizer, or an educational prop, AeroMill offers a creative and multifunctional experience.

⚙ Key Features

✅ Manual spin – works anywhere, no batteries or wires
✅ Storage space inside – stash small items
✅ Retro design – inspired by traditional windmills
✅ Only 4 main parts – quick and simple assembly
✅ Scalable – works at both small and large sizes
✅ Minimal supports required – optimized for FDM printing
✅ Two-color friendly – great with dual-extrusion or colorful filaments

🛠 Customization & Scalability

Easily scale the model up or down in your slicer

Resize just the fan, or scale the entire build

At larger scales, the following additional parts may help improve functionality:

shaft plugs

axle stoppers

insert sleeves

🔹 These optional parts are included in a separate STL file.
For normal-sized prints, only the 4 core components are required.

⚠ Technical Notes

All components are designed with tight press fits

If your printer is less precise, consider scaling hole-bearing parts up by 1–2%

The model is designed to avoid supports; only one part (windmill body.stl) may require minimal support inside the holes

Most slicers handle this well — no raft or special features needed

🖨 Recommended Print Settings

Material: PLA (or PETG for better heat resistance)

Layer height: 0.2 mm

Infill: 15–30%

Supports: ❌ Not needed, except for holes in windmill body.stl

Scaling tip: +1–2% on parts with holes if needed

📸 The first image was generated with AI and illustrates how the model works – spinning the fan manually with your fingers to create airflow. The rest of the photos are real and show the actual printout!