I designed this ventilated electrical box originally for an audio amplifier, but its compact dimensions (122 mm length × 73 mm width × 30 mm depth) make it perfect for a wide range of electronics projects: Arduino, Raspberry Pi, ESP32, relay boards, motor drivers, and much more.

Exclusive feature: the snap-fit lid (no screws needed!) integrates a standard 70x70mm fan mount (5V or 12V), ideal for cooling boards that heat up during intensive operation (IoT, multimedia, automation). The fan, combined with strategic ventilation holes on the base and lid, ensures optimal airflow to maintain safe temperatures.

N.b.: For applications with boards that heat up significantly (power electronics, high-current drivers, intensive multimedia), I recommend printing in ABS or even better ASA for their excellent thermal resistance (>90°C) and dimensional stability even under thermal stress.

For standard Arduino/Raspberry Pi/IoT projects, common PETG works perfectly (sufficient up to 70-75°C continuous) and is easier to print without warping.