Exploring electromagnetism with DIY laser cut motor
Teaching kids about how motors work can be a lot of fun, particularly when they get to build and experiment on the motors themselves. So when engineer Matt Venn spotted a neat little 3D printed motor, he decided to make his own variation – this time using laser cut components and an Arduino to run the show.
The learning experience
Once all the kinks were worked out, the Arduino was replaced by a few cheap electronic components. This way, students have the opportunity to build the entire setup from scratch, mounting the electronics on a breadboard as they work out exactly what each component does.
The adjustable laser cut rotor has slots to hold different numbers and configurations of magnets, and this can be further extended by cutting custom rotors to suit alternate magnet arrangements.
This is a great project that encourages a hands-on approach to exploring electromagnetism by building a simple DC brushless motor. Consideration has been made to come up with a laser cut solution that can be assembled and studied within the time constraints of a science class workshop.
Matt has provided all of the files and extra info you need to get the motor up and running on GitHub, where you will also find a brief video walkthrough that highlights how the motor and supporting circuitry work.