There are 4 main groups of parts needed to build the AR4 robot:

  • AR4 MK3 Combo Kit - This includes all the aluminum structural components, hardware components and primary electrical components.
  • Stepper Motors and Drivers - These are available at the lowest price; factory direct from Stepperonline (see link on this page).
  • 3D Printed Components - You will need to 3D print your covers and spacers in any color you choose.
  • Gripper or Tool Holder - You can install any type of gripper or tool holder you need, kits for a pneumatic and servo gripper are available options (see link on this page).
When placing your order please add any necessary VAT or EORI numbers for overseas orders in the order notes section.
VIEW THE TUTORIALS PAGE FOR A COMPLETE RUNDOWN ON HOW TO BUILD THE AR4 ROBOT 👉

AR4 MK3 Robot Combo Kit

$1,329.00

Complete AR4 MK3 stepper-motor, driver & power supply package – factory direct from Stepperonline

AR4 MK3 Aluminum Parts Kit

$820.00

AR4 MK3 Hardware Kit

$429.00

AR4 MK3 Electrical Parts Kit

$230.00

Pneumatic Gripper Parts Kit

$152.50

Servo Gripper Parts kit

$84.50

AR4 Modbus PLC upgrade option

$16.00

AR4 MK3 CAD Models – SOLIDWORKS & .STEP files

$99.00

HTD Series Belt Update for Joint 3

$32.50

J6 Housing and Gripper Mount – for upgrading to MK3 from previous versions

$38.50

SHOP ROBOT KITS

AR4 MK3 Robot Combo Kit

$1,329.00

Complete AR4 MK3 stepper-motor, driver & power supply package – factory direct from Stepperonline

AR4 MK3 Aluminum Parts Kit

$820.00

AR4 MK3 Hardware Kit

$429.00

AR4 MK3 Electrical Parts Kit

$230.00

Pneumatic Gripper Parts Kit

$152.50

Servo Gripper Parts kit

$84.50

AR4 Modbus PLC upgrade option

$16.00

AR4 MK3 CAD Models – SOLIDWORKS & .STEP files

$99.00

HTD Series Belt Update for Joint 3

$32.50

J6 Housing and Gripper Mount – for upgrading to MK3 from previous versions

$38.50

Automation for Manufacturers, Makers & Creative Professionals

AR4 in Industry

Deploy the AR4 for light assembly, prototyping, or production tasks. Its Arduino/Python control and Modbus support bridge DIY projects and professional automation.
Hands-On Robotics for All Levels

AR4 in Education

From STEM classrooms to university labs, the AR4 teaches real-world automation with accessible Python programming and 3D-printable customization.
Upload your Photo