120mm Custom DC Motor Fan

A compact, 3D-printable 120 mm fan designed for DC motor applications, combining standard sizing with a clean, functional design. Ideal for custom cooling solutions, DIY electronics, or airflow experiments.

Features

• Standard 120 mm fan format for wide compatibility with enclosures and mounts 
• Integrated mounting frame with corner screw holes for easy installation
• Optimized multi-blade impeller for consistent airflow
• Designed for direct coupling with a DC motor
• Fully 3D-printable with no supports required (depending on orientation)
• Clean and minimal aesthetic suitable for technical builds

Assembly & Usage

Attach the fan blade to a compatible DC motor shaft (press-fit or adapter depending on your setup).
Mount the frame using standard screws through the corner holes.
Power the motor according to its specifications to generate airflow for cooling or ventilation.

Background / Motivation

This model was created to provide a customizable alternative to standard PC fans, allowing makers to integrate airflow solutions into projects where off-the-shelf fans may not fit or offer the desired flexibility. It is especially useful for prototyping, electronics cooling, and custom enclosures.