AR4 ROBOT DOWNLOADS:

Control Software Source Files

AR4 Version 2.2 (source)
AR4 Version 2.0 (source)
AR4 Version 1.3 (source)
AR4 Version 1.1 (source)

Teensy Sketch Files

Teensy 4.1 sketch Ver 2.2
Teensy 4.1 sketch Ver 2.0

Control Software Executable Files

AR4 Version 2.2 (exe)
AR4 Version 2.1 (exe)
AR4 Version 2.0 (exe)
AR4 Version 1.3 (exe)
AR4 Version 1.1 (exe)

Make sure you install the latest version sketch along with the latest software version - for example when using the latest software version 2.2 you should also install the teensy sketch version 2.2

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If you are updating your AR3 there is a 2.2 sketch below in the AR3 downloads

Aux Board Sketch Files

Arduino Nano sketch Ver 1.0
Teensy 4.1 sketch Ver 1.1

Manuals

3D print files (stl files)

AR4 covers and spacers
AR4 structural components
AR4 misc. files

Servo Gripper

Servo gripper manual
Servo gripper CAD/print files
AR4 ROBOT MANUAL

Travel Track

AR4 TRAVEL TRACK MANUAL
AR4 TRAVEL TRACK CAD FILES

Additional Information

AR4 serial command examples
2D drawing files
Arduino Mega sketch Ver 1.0
AR4 aux IO board read me