The CLN motor driver series is an open-source project aimed at creating a range of compact, cost-efficient high-performance closed-loop stepper drivers for various NEMA form factor motors. These drivers are designed to provide silent and smooth motion, high-precision position control, and energy-saving capabilities, suitable for a wide array of applications in robotics, CNC machines, 3D printers, and more.
- 🕹️ Closed-Loop Control: Integrates an encoder for real-time position monitoring, ensuring precise and safe motion.
- 📏 Fine Positioning: Achieves high position control accuracy of 0.01° for smooth operation.
- 🛡️ Reliable Operation and Enhanced Safety: Features integrated diagnostic and protection mechanisms for the motor and the user safety.
- 🧩 Modular Concept: Offers various configurations for different cost, size and performance needs, supporting expansion boards and daisy chain connections.
- 🎓 Learning Platforms
- 🛠️ CNC Machines & 3D printers
- 🤖 Robotics & Automation Systems
- 🤝 Collaborative Robots
- 🔭 Camera & Telescope Stabilization Systems
- 🔬 Laboratory Equipment
- 🏭 Industrial Motion Control Systems
- 📳 Haptics & Force Feedback Systems
wiki: includes design documentation and other informationhardware: contains design source files, manufacturing files, schematics, block diagrams and 3D models
The following options are available:
- CLN-SimpleFOC: SimpleFOC based firmware for CLN. Pretty stable, ready to use
- TunePulse: Firmware for CLN and RadiX motor drivers. Currently a work in progress; estimated release date is to be determined
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CLN17 V3.0[active]: newest version with best performance and BLDC support [wiki].- Key info: Discrete MOSFET based, 6-48V 3.2ARMS 4.5APEAK, up to 60W output power, 21bit position feedback, dual-sided SMD only assembly
- Supported interfaces: STEP-DIR-EN, USB, CAN-FD, USART, I2C, SPI, ABZ
- Supported motors: Stepper, 3phase BLDC/PMSM
[CLN17 V1.0](hardware/CLN17/V1.0 [OBSOLETE]) [obsolete]: pilot version [wiki]
[CLN17 V1.5](hardware/CLN17/V1.5 [OBSOLETE]) [tested]: cost-efficient version [wiki]
[CLN17 V2.0](hardware/CLN17/V2.0 [NRFND]) [tested]: high voltage version [wiki].
[CLN17 V2.1](hardware/CLN17/ [NRFND]) is improved version
[CLN17 V2.5](hardware/CLN17/V2.5 [NRFND]) [tested]: meant to be final version but will be skipped
Important Note: Obsolete designs will not be supported in future
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CLN234 V1[under tests]: powerful and versatile [wiki]Key info: external MOSFETs, 8-75V 10ARMS 20APEAK, up to 1000W output power, 21bit position feedback, 56x38x18mm, fits into Ø60mm
Supported interfaces: STEP-DIR-EN, USB, CAN-FD, USART, I2C, SPI, ABZ
Jump to the RadiX project repository
If this project resonates with you, please consider the following ways to support its development:
- Ko-fi: Preferred for membership subscription and one-time donation
- Patreon: Alternative platform with higher fees
- Join Discord community: Stay updated, engage in discussions, and contribute to the project
Your contribution, regardless of size, is greatly appreciated!
A heartfelt thank you to everyone who supports this project!
Important Note: This README will be updated to reflect the latest progress and changes in the project.


