Open source modular high performance drivetrain for use in robotic competitions

Key Components:

DRV8244 Motor Driver: We have chosen the DRV8244 driver from Texas Instruments due to its ability to supply sufficient current to our powerful motors. This driver is crucial for ensuring that our system can handle the demanding performance requirements of competitive robotics.

BE3561 Motors: These super high-power motors are the heart of our drivetrain, delivering the torque and velocity needed to outperform the competition. The DRV8244 from Texas Instruments is the powerhouse of our circuit, chosen for its ability to deliver high current with low resistance. This driver is capable of handling the substantial power demands of our BE3561 motors, ensuring that the drivetrain can achieve the required velocity and torque without compromising on efficiency. The driver’s advanced protection features, such as overcurrent, overtemperature, and undervoltage lockout, safeguard the entire system, allowing for robust and reliable operation under extreme conditions.

Custom CNC/SLM Wheels: To achieve optimal traction and durability, we are designing wheels that will either be CNC machined or produced using Selective Laser Melting (SLM). Each wheel is equipped with 16 high-friction X-ring rollers, providing a uniform and responsive contact surface with the ground, essential for high-velocity maneuvering.

Why OSHWLab? The precision and quality required for our drivetrain components, particularly the CNC and SLM wheels, come with a significant cost. Additionally, our self-designed high-performance motor drivers, tailored specifically to work with the DRV8244, represent a critical investment in ensuring our robot's competitive edge.

Support from OSHWLab will allow us to bring this innovative drivetrain to life, enabling us to test, refine, and ultimately compete at the highest levels in robotics competitions. Your backing will not only help cover the costs associated with high-end manufacturing processes but also contribute to the development of cutting-edge robotics technology.

Together, we can push the boundaries of what is possible in robotics, setting new standards for performance and innovation in the field.

Thanks to OSHWLab Stars Sponsorship, we have completed this drivetrain system. We have manufactured it and tested that the motor drivers work for at least 3A continuous current output, and can reach peak currents of at least 21A. This marks the validation and completion of our OSHWLabs sponsorship project.