Quantity   Component name
2 × Geared stepper motor Gear Ratio 5:1 Spur Gearbox High Torque Nema 23 Stepper Motor 23HS30-2804S-SG5
2 × Stepper motor driver 4A TB6600 Stepper Motor Driver Controller 9~42V TTL 16 Micro-Step
1 × Mounting plate Various material options. We used 10mm acrylic plate left from another project
2 × Battery 12V sealed lead acid 7AH, connected in series
1 × Blade fuse holder and fuser In-line holder, 10A blade fuse
1 × Power cables 16 AWG, around 2m black and 2m red
1 × Joystick Analog, two axis (Servo City RB-Sct-283)
1 × Engage/disengage switch SPST mini toggle switch
1 × Power switch 3 modes (on, off, charge)
1 × Linear actuator DC 12V 750N 165LBS 50mm travel
1 × Battery connectors Spade connectors to suit power cables and battery contacts
1 × Wood, steel tube and bolts for arm-rest/joystick
1 × H Bridge for linear actuator LM298 module
1 × Microcontroller Arduino Nano
1 × Microcontroller breakout/terminal board With screw terminals and headers to match selected microcontroller