ESP32-Based FluidNC TMC2209 CNC Controller runs FluidNC open-source firmware

FluidNC TMC2209 Pen/Laser CNC Controller is an ESP32-based 2-axis CNC controller with FluidNC firmware. This CNC controller is designed for machines that use stepper motors on 2 axes. These include pen drawing machines, laser cutters/engravers, sand plotters, etc. It also has an RC Servo connector for pen lift on a Z axis.

ESP32 wireless modules have been used for years in 3D printers and CNC controllers, such boards as Phi Mainboard 5LC 3D printer controller, Pen/Laser Engraver ESP32 Controller, Longer RAY5 Laser Engraver. Feel free to check those out if you are interested in those topics.

FluidNC TMC2209 Pen/Laser CNC Controller specifications:

• Wireless module:  Espressif Systems ESP32-WROOM-32E
  • Xtensa dual-core 32-bit LX6 microprocessor, up to 240 MHz
  • 4MB flash
  • 448 KB ROM, 520 KB SRAM and 16 KB SRAM in RTC
  • 2.4 GHz WiFi and Bluetooth LE connectivity, built-in PCB antenna
• Stepper drivers: 2 numbers TMC2209 stepper drivers
• USB: USB type C port
• Interface: MicroSD card socket
• Misc:
  • Optional stallGuard for sensorless end stops
  • 1 number RC servo connection
  • 6 numbers of inputs for limit and control switches
  • I/O Expansion port for displays and pendants
  • 3 numbers of 5V outputs to control lasers and accessories
• Power:
  • input voltage (VIN) range 12-30 VDC
  • Input current is minimum 3A
• Dimensions: 70mm x 70mm

You will find more technical details, a YAML file configuration, and setup information on the wiki page. The FluidNC source code is on GitHub. You can use a FluidNC web installer in Chrome, Edge, or Opera to install the firmware on compatible boards. The PCB design is open-source, and all resources are available in oshwlab. The 3D design of this board is available and you can download it from Fusion360.

The FluidNC TMC2209 Pen/Laser CNC Controller is now available to order on Tindie at $45 without shipping charges. It is also available on Elecrow at $40 or even lower if you buy two or more. If you need more than this CNC controller for your project, check out FluidNC’s wiki for a wide range of supported hardware options.

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