Modular Weather Station Shield (Rain & Sun Protection)

This model is a protective shield for environmental sensors, designed to protect them from rain and direct sunlight exposure while allowing proper airflow for accurate measurements.

The shield follows a stacked-cone (multi-plate) design that prevents water ingress while maintaining unrestricted air circulation around the sensor.

I have tested this design for approximately one year in a rainy environment, and it has never allowed water to enter the interior. At the same time, it allows air to pass through freely, ensuring reliable environmental readings.

If printed in a light color (white recommended), the shield does not significantly affect temperature measurements, even under direct sunlight.

Technical Details

Modular Design

This is a fully modular design, composed of:

• Top piece

• Intermediate section(s) – print as many as needed depending on the required height

  • Each intermediate section adds 15 mm (1.5 cm) of internal height

• Threaded base (two-part system)

  • One half of the thread is glued to the bottom of the shield

  • The other half is glued to the mounting surface or structure

Internal Space

• Internal cavity: 30 mm diameter cylindrical space

• Height: 15 mm per intermediate section added

This allows you to adapt the shield height to different sensor sizes.

Mast Mount Adapter

An additional mounting piece is included to attach the shield to a mast:

• Compatible with masts up to 35 mm diameter

• Secured using two M3 screws

Printing Recommendations

• Print in white or light-colored filament for best thermal performance.

• PETG or ASA recommended for outdoor durability.

• PLA may work in mild climates but is not ideal for long-term outdoor exposure.