Making Powerful Brushless Motor at 18000RPM

Introduction

In this tutorial, we will walk through the process of building a powerful brushless DC motor capable of reaching speeds of 18,000 RPM. This project is ideal for hobbyists and engineers looking to create high-performance motors for various applications. We will cover the essential components needed and provide step-by-step instructions to guide you through the assembly process.

Step 1: Gather Essential Components

To start building your brushless motor, you will need to acquire the following components:

• Shaft (8mm): Purchase here
• Ball Bearing (8mm): Purchase here
• Copper Wire (.91mm): Purchase here
• BLDC Controller: Watch this video for controller details
• Neodymium Magnet: Purchase here

Make sure to check the specifications of each component to ensure compatibility.

Step 2: Prepare the Shaft and Bearings

1. Install the Ball Bearing

   • Insert the 8mm ball bearing into the designated slot on the motor casing.
   • Ensure it fits snugly to avoid any wobble during operation.

2. Attach the Shaft

   • Slide the 8mm shaft through the bearing.
   • Make sure the shaft rotates freely without obstruction.

Step 3: Wind the Copper Wire

1. Cut the Copper Wire

   • Cut a suitable length of .91mm copper wire for winding around the motor stator.

2. Wind the Coils

   • Carefully wind the wire around the stator poles, creating multiple turns (the number of turns may vary depending on your design).
   • Make sure the coils are evenly spaced for balanced performance.

3. Secure the Winding

   • Use tape or a zip tie to secure the windings in place.
   • Ensure that there are no loose ends that could interfere with the motor's operation.

Step 4: Install Neodymium Magnets

1. Position the Magnets

   • Place the neodymium magnets on the rotor in alignment with the stator coils.
   • Ensure that the poles of the magnets are facing the correct direction for optimal magnetic interaction.

2. Secure the Magnets

   • Use adhesive or a securing method appropriate for your design to keep the magnets in place.

Step 5: Connect the BLDC Controller

1. Wiring the Controller

   • Follow the instructions provided in the BLDC controller video to wire the motor correctly.
   • Connect the motor phases to the controller outputs as specified.

2. Power Up the System

   • Once everything is connected, power up the controller.
   • Test the motor at low RPMs to ensure everything is working correctly before increasing the speed.

Conclusion

Congratulations! You have successfully built a powerful brushless DC motor capable of reaching 18,000 RPM. This project not only enhances your skills in motor assembly but also provides a foundation for future projects involving high-speed applications. Consider experimenting with different configurations and components to further optimize your motor's performance. Happy tinkering!