CNC Shield V3.0 for Arduino - (AD20686)

Description:

CNC Shield V3.0 can be used as a drive expansion board for engraving machines, 3D printers, and other devices. There are 4 slots on the board for stepper motor drive modules. It can drive 4 stepper motors, and each stepper motor only needs two IO ports, which means 6 IO ports can manage three stepper motors very well, it is very convenient to use. After inserting the Arduino CNC Shield V3.0 into Arduino UNO, and installing the GRBL firmware, you can quickly make a CNC engraving machine.

Note: Drivers are NOT included!

Features:

- Latest Version 3.0 Arduino CNC Shield

- GRBL 0.8 compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals)

- PWM Spindle and direction pins

- 4-axis support (X, Y, Z, A-Can duplicate X, Y, Z or make a full 4th axis with custom firmware using D12 and D13 pins)

- Cooling enabled

- Uses removable A4988 or DRV8825 stepper drivers

- Compact design

- Stepper motors can be connected with 4-pin molex connectors or soldered in place

- Runs on 12-36V DC. (Currently only DRV8825 drivers can handle up to 36V so consider the operating voltage when powering the board)

A4988 Stepper Motor Driver:

The A4988 DMOS stepper motor driver is an 'Allegro' breakout board for controlling micro-steps with micro-stepping and overcurrent protection; Read the A4988 datasheet carefully before using this product.

- Low RDS (On) output

- Automatic current decay mode detection/selection

- Mixed with slow current decay modes

- Synchronous rectification for low power dissipation

- Internal UVLO

- Crossover current protection

- 3.3 and 5 V compatible

- Thermal shutdown circuit

- Ground fault protection

- Load short circuit protection

- Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16

Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.

Reference link