Description
This smaller CNC Shield v4.0 Board can control 3 stepper motors. It comes with 3 x A4988 stepper drivers, heat sinks and an Arduino Nano compatible.
The CNC Shield v4.0 is controlled by an Arduino Nano running GRBL. This makes it easy to use via UGS or other GRBL based G-Code senders.
Specifications:
- CNC Shield Version 4.0:
- Version 4.0
- 3-Axis support (X, Y, Z)
- Digital IO interface, easy to connect to other modules, such as ENDSTOP.
- Uses GRBL as control software
- Uses removable A4988 compatible Stepper Drivers.
- Can use High Current DRV8825 Stepper Drivers (not included in this pack)
- Power: DC5V interface, 7.5-12V voltage input.
- Interface: Nano-USB
- Maximum stepper motor current: 2A 2 phase 4 wire stepper motor
- Over 1A stepper motors must use heat-sinks and/or other cooling (fan)
- Nano 3.0
- Microcontroller – ATmega328
- Operating Voltage (logic level) 5 V
- Input Voltage (recommended) 7-12 V
- Input Voltage (limits) 6-20 V
- Digital I/O Pins 14 (of which 6 provide PWM output)
- Analog Input Pins 8
- DC Current per I/O Pin 40 mA
- Flash Memory 32 KB (ATmega328) of which 2 KB used by bootloader
- SRAM 2 KB (ATmega328)
- EEPROM 1 KB (ATmega328)
- Clock Speed 16 MHz
- Dimensions 0.73″ x 1.70″
- Length 45 mm
- Width 18 mm
- Weigth 5 g
- A4988 Stepper Motor Driver
- Minimum operating voltage: 8 V
- Maximum operating voltage: 35 V
- Continuous current per phase: 1 A
- Maximum current per phase: 2 A
- Minimum logic voltage: 3 V
- Maximum logic voltage: 5.5 V
- Microstep resolutions: 1, 1/2, 1/4, 1/8, 1/16
- Size: 0.6″ × 0.8″
- Weight: 1.3 g
Comes with:
- 1 x CNC Shield V4.0
- 1 x Nano 3.0
- 3 x A4988 Stepper Motor Drivers
- 3 x Heat Sinks with thermal tape applied
- 1 x USB Cable
Setup Instructions:
https://www.instructables.com/How-to-Use-the-CNC-V4-Board-despite-Its-quirks/



















