Quantity   Component name
1 × PC with ubuntu The PC with ubuntu runs ROS program which used to do Inverse kinematics solution and Trajectory planning for robotic arm. You can also use a raspberry pi to finsh the same work.
1 × 3d printer To print some necessary parts
3 × 57 stepper motor without reducer
1 × 57 stepper motor with 1:10(or more) reducer
1 × 42 stepper motor
5 × LV8727 stepper motor driver
1 × 24V 20A switch power supply
1 × LM2596S DC-DC adjustable voltage-reducing power module stabilizer