Arduino – CNC v3 Shield Assembly for UNO

Arduino – CNC v3 Shield Assembly for UNO

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CNC v3 Assembly Overview

The Arduino CNC Shield v3 works with UNO and allows control of 4 stepper motors

To control 4 stepper motors, 4 stepper motor drivers are required, these are daughter boards that do the actual control

There are several different models of Stepper Motor Drivers

All Stepper Motor Drives require installation in the correct orientation, if installed in the wrong orientation, they will be destroyed

To install correctly, find the EN or ENABLE on the CNC v3, then find the EN or ENABLE Pin on the Stepper Motor Driver board and install the Stepper Motor Driver so the Pins match up on both devices

The cheapest Stepper Motor Drivers are the A4988, which have a Green Model and a Red Model, which are equivalent in functionality

The next step up in performance is the DRV8825, which provides better functionality, warning – these have the opposite orientation in mounting on the CNC v3

The A4988 and DRV8825 are common lower end Stepper Motor Drivers, and can be found on aliexpress.com for less than $1

There are many higher end Stepper Motor Drivers, and the cost goes up considerably, All of the system I will experiment with will use the A4988 and DRV8825

The CNC v3 Shield installs onto the UNO, and the Stepper Motor Drivers install onto the CNC v3 Shield

The Parts – UNO, CNC v3 and 4 A4988 Stepper Motor Drivers

Arduino CNC v3 parts
Arduino CNC v3 parts

The CNC v3 Shield installed on the UNO

Arduino CNC v3 Installed on UNO
Arduino CNC v3 Installed on UNO

The Stepper Motor Drivers installed on the CNC v3 Shield – Orientation is Important!

Stepper Drivers Installed on CNC v3
Stepper Drivers Installed on CNC v3

Video of the CNC v3 Assembly

Arduino – CNC v3 Shield Assembly for UNO

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