This is a pen plotter controller that uses the ESP32 microcontroller and TMC2209 stepper motors drivers. The ESP32 runs Grbl_ESP32 firmware which allows you to run your machine wirelessly from your phone or PC via Bluetooth or Wifi. You can also stream via USB or micro SD card. The TMC2209 stepper drivers run your stepper motors super quietly and you can completely configure them via software (no more pots and jumpers).

Features

• (2) Built in TMC2209 stepper drivers
• 12-30V operation
• 1.2A max run current
• Optional sensorless stall detection
• All settings adjustable in firmware
• (2) Input circuits with R/C noise filtering
• (1) RC servo output for pen lift mechanism
• (2) 5V outputs (typical uses laser/spindle PWM, enable, assist air relay
• (1) Fan connector
• (1) Micro SD socket.

What you get

You get a fully assembled controller. You need to get the optional programmed ESP32 or supply your own.

Open Source

The design is fully open source with the files on Github.

• Controller
• Firmware

Programming

You can provide and program the ESP32 yourself or add it as an option. It will be programmed with this machine definition. It is compatible with both pen machines and lasers. If you have special requirements, like CoreXY kinematics, please add a note to the order.