The project

The Comb PCB motor redefines what’s possible in accessible, efficient, and versatile motor solutions.

• USB-C Powered: Powered through a standard USB-C connection, making it incredibly user-friendly and compatible with modern power sources.
• Cost-Effective Manufacturing: Designed with simplicity and scalability in mind, it is extremely affordable to produce. Perfect for hobbyists and large-scale applications alike.
• Efficient: The comb-shaped stator maximizes efficiency by eliminating torque loss, ensuring optimal performance even under demanding conditions.
• Seamless Integration: Fully customizable, the motor can be easily modified or directly integrated into any project requiring a compact, inexpensive motor solution.
• Advanced Control Capabilities: Built-in position, velocity, and torque control offer a level of precision and flexibility typically reserved for far more expensive systems.

In short, this PCB motor combines cutting-edge design with practicality, making it an ideal choice for engineers, makers, and innovators everywhere.

These early tests confirmed the basic viability of the motor while pointing out mechanical details to refine in future versions.

Tests

Assembly Instructions

Follow these steps to assemble the Comb PCB Motor:

1. Order PCBs: Purchase the motor PCBs from PCBWay using the provided manufacturing files.
2. Prepare Mechanical Parts: 3D print the rotor and bearing holder using standard FDM or resin printers. Alternatively, you can order high-quality 3D prints directly through PCBWay’s 3D printing service.
3. Attach Magnets to Rotor: Carefully glue the magnets onto the rotor.
4. Mount the Bearing: Glue the bearing into the bearing holder. Make sure it sits flat and is fully secured.
5. Secure Bearing Holder to PCB: Use non-ferrous screws and nuts (e.g., stainless steel or nylon) to attach the bearing holder to the PCB. Avoid magnetic materials to prevent cogging or interference with motor function.
6. Assemble the Rotor: Press-fit the rotor (with magnets) into the bearing. Ensure smooth rotation.
7. Program the Firmware: Connect the PCB to your computer via USB-C. Use STM32CubeProgrammer to flash the latest firmware onto the microcontroller. Firmware is available from the github repository.