CNC Shield A4988 Arduino for 3D Printers and Milling Machines (GRBL)

This shield for the Arduino UNO controls up to four stepper motors and is suitable for CNC machines and other mechanical projects. The open source G-code control GRBL serves as software. The stepper motor drivers are plugged in and are not included. Observe the pin assignment when plugging them in: the enable pin is marked EN on the board.

Recommended Accessories:

• A4988 Stepper Motor Driver Module
• Short Circuit Jumper Blue RM 2.54mm 20 pcs.
• Arduino UNO Rev.3 SMD Board Atmega328
• 12V DC 4000mA Power Supply AC/DC Adapter 5.5mm/2.1mm Plug
• 6p PH2.0 to 4p Dupont2.54 stepper motor cable 1m Nema17

Features:

• 4 driver slots: X, Y, Z and A (A clones an axis)
• Suitable for A4988 and DRV8825
• 3 jumpers per axis for 1/16 steps, jumpers not included
• 2 limit switches for each axis
• Pins for spindle on and direction, coolant on, E-stop, resume, hold and abort
• Reset button and screw terminal for the power supply

Application Examples:

• CNC milling machines
• Plotters and laser cutters
• Mechanical Arduino projects with up to 4 stepper motors

Documentation:

• Board information (Protoneer)
• GRBL (GitHub)
• GRBL wiki

Technical Data:

• Marking: CNC Shield, Ver 3.00
• For motor drivers: A4988
• Number of axes: 4 (3 axes + 1 cloned, gantry)
• Compatible: Arduino UNO
• Input voltage: 12 V to 36 V
• Stepper motor connection: 4-pin
• Dimensions: 68 × 53 × 18 mm
• Weight: 32 g

Scope of Delivery:

• 1× CNC shield A4988 Arduino (drivers not included)