ARDUINO CNC SHIELD V3

ARDUINO CNC SHIELD V3 is designed to allow you to control a CNC router or milling machine from an Arduino board. It contains 4 driver sockets which allows compatible Pololu A4988 driver modules to be inserted (see HCMODU0068 on our website) providing the ability to drive 3 stepper motor axis (XY& Z) plus an optional 4th auxiliary motor. Additional connectors provide easy connection of end stop sensors and control buttons.

Schematic and test Sketch available on our support forum.

UNO for Arduino———————- expansion board

• 8 ———————— EN ( stepper motor driver enable active low )
• 7 ———————– Z.DIR (Z -axis direction control )
• 6 ———————– Y.DIR (Y -axis direction control )
• 5 ———————– X.DIR (X -axis direction control )
• 4 ———————- Z.STEP (Z -axis stepper control )
• 3 ———————- Y.STEP (Y -axis stepper control )
• 2 ———————- X.STEP (X -axis stepper control )

Specifications:

1. Latest Arduino CNC Shield Version 3.10
2. GRBL 0.9 compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals)
3. PWM Spindle and direction pins
4. 4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13)
5. 2 x End stops for each axis (6 in total)

Features

1. Coolant enable
2. Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
3. Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
4. Compact design.
5. Stepper Motors can be connected with 4 pin Molex connectors or soldered in place.
6. Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
7. Please note that this is an unassembled kit and needs soldering.
8. * * * Jumpers color may vary depending on the available stock.