Arduino – CNC v3 Shield Assembly for UNO
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
The CNC v3 Shield installed on the UNO
The Stepper Motor Drivers installed on the CNC v3 Shield – Orientation is Important!
Video of the CNC v3 Assembly
Arduino – CNC v3 Shield Assembly for UNO
