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CLN - CLOSED-LOOP DRIVERS FOR NEMA MOTORS

License: CC BY-NC-SA 4.0

CLN17

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.

Key Features

  • 🕹️ 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.

Applications

  • 🎓 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

Repository Structure

  • wiki: includes design documentation and other information
  • hardware: contains design source files, manufacturing files, schematics, block diagrams and 3D models
  • firmware: [to be updated as the project evolves]

Hardware Versions

NEMA17 dedicated drivers

  • V1.5 [tested]: cost-efficient version [wiki]

    Preview

    • Key info: TMC2209 based, 5-25V 1.4ARMS, 15bit position feedback, single-sided assembly
    • Supported interfaces: STEP-DIR-EN, USB, CAN-FD, USART, I2C, SPI, ABZ
    • Release of source files: Released

  • V2.0 [tested]: high voltage version [wiki]

Preview

  • Key info: DRV8844 based, 8-48V 1.75ARMS, 15bit position feedback, single-sided assembly
  • Supported interfaces: STEP-DIR-EN, USB, CAN-FD, USART, I2C, SPI, ABZ
  • Release of source files: April 2024 (post BETA)
OBSOLETE

CLN17 V1.0 [obsolete]: pilot version [wiki]

Important Note: Obsolete designs will not be supported in future

NEMA23 and NEMA34 dedicated drivers

  • V0.1 [in design]: powerful and versatile [wiki]

    Key info: external MOSFETs, 6-52V 10ARMS, 16bit/21bit position feedback

    Supported interfaces: STEP-DIR-EN, USB, CAN-FD, USART, I2C, SPI, ABZ

Modular drivers dedicated for embedded systems

Jump to the RadiX project repository

Hardware Development Roadmap

  • [April 2024] - BETA LAUNCH for CLN17 V2.0, source files release
  • [April 2024] - CLN234 design for Nema23, Nema34 and Nema42
  • [June 2024] - CLN14 for Nema14 miniature motors

Important Note: If critical problems will be revealed, the schedule will be updated

Supporting the Project

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.