4x CNC Controller (Integrated ESP32 and TMC2209)

Overview

Hello, I am Bart Dring. I am the designer of this controller and one of the original creators of FluidNC firmware. The profits from this controller directly help support the firmware development. Click on the About Designer tab above to see other CNC electronics I have for sale. Thank you for considering this product.

This is a 4 Axis CNC controller with (4) built in TMC2209 stepper motor drivers and a built in ESP32 module. The firmware has full control of the motor drivers via UART to set the microstepping, current and other features. You can use Stallguard sensorless endstops by directing that signal to limit switch inputs via solder jumpers.

It was intended to look very much like the 6x controller. The TMC2209 drivers do require more I/O than external drivers, so there are fewer inputs.

Features

• (4) TMC2209 Stepper Drivers in UART Mode

• Can use stallguard for sensorless end stops

• (6) inputs

• (4) 5V Outputs

• (2) 3A MOSFET Outputs

• (1) 0-10V Spindle output

• (1) RS485 interface for spindle VFDs

• (1) I/O Expansion Module Socket

• SD Card socket.

• USB-C

Documentation

• Wiki Page
• Source Files (EasyEDA)