GR

4-Axis CNC Motherboard Compact Edition

Full 4-Axis CNC motion controller for Stepstick stepper drivers, featuring a dual-core 32-bit processor @240mhz offering maximum step rate of 120KHz

Options

- PHOTOS -
4-Axis CNC Motherboard Compact Edition view 0
4-Axis CNC Motherboard Compact Edition view 1
4-Axis CNC Motherboard Compact Edition view 2

- TECHNICAL SPECS -

The 4-Axis CNC Motherboard Compact Edition is designed for the demanding users of small CNC machines. It features a 240MHz dual-core 32-bit processor, USB connectivity and the ability to generate up to 120kHz pulses to simultaneously drive four stepper motors.

The four Terminal Switch and Probe inputs are opto-isolated to keep out any external electromagnetic interference while all other outputs such as Spindle PWM, Spindle Enable, Mist and Flood Coolant operate on a stable and clean 5VDC current.

The 4-Axis CNC Motherboard Compact Edition comes equipped with four DRV8825 drivers capable of driving Nema 17 and Nema 23 stepper motors that operate from 24V to 36V and require a maximum current of 2Amps.

Our 4-Axis motherboard is compatible with many GCode Sender applications for the GRBL firmware. We recommend using Focus.

Useful Links: Help & Support (Drivers, User Manual etc.)
Discord Server link:  https://discord.gg/nRKETyjJ7E

Features

Motor Outputs

Up to 4 Stepper motors

Max. Step Frequency

120Khz

Limit Switches

4 opto-isolated limit switch inputs (12VDC)

Tool Setter / Probe

Opto-isolated tool setter input (12VDC)

Spindle Control

PWM output for Spindle control up to 10Khz (5VDC)

Coolant

Mist and Flood coolant outputs (5V DC)

Other

Reverse Polarity Protection; Samsung Ceramic Capacitors

Equipment

MCU

ESP32-WROOM-32 with Dual Core Xtensa 32bit CPU @ 240MHz and 520Kb SRAM

Firmware

Rabbit GRBL for ESP32

Drivers

4x DRV8825 with Microstepping x32

Supply

Connectivity

USB

Voltage Input

24V-36V

Ambient Τemperature

15°C – 50 °C (59°F – 122°F)

Other

Size (W x D x H)

105mm x 88mm x 25mm

Package Size (W x D x H)

135mm x 110mm x 60mm

Net Weight

80gr


- KEY FEATURES -
ESP32-DevKitC

ESP32-DevKitC

Our 4-Axis motherboard hosts an ESP32-DevKitC-32 made by Espressif Systems preloaded with the latest 32-bit version of the GRBL firmware. The ESP32-DevKitC-32 has a dual core processor at 240Mhz and 520Kb ram

Reverse Polarity Protection

Reverse Polarity Protection

The 12v power input has reverse polarity protection in order to protect your board and you electronics from wrong wiring

Opto Isolated Inputs

Opto Isolated Inputs

Limit switch and probe inputs are opto isolated and operates at 12V in order to eliminate any external electromagnetic interference

Focus - CNC Control Software

Focus - CNC Control Software

The 4-Axis CNC Motherboard is compatible with most free GRBL GCode Senders on the internet. We recommend that you use Focus which has been developed to make the most of the capabilities of our hardware.