Once we had analysed the various problems we could face, we had to choose the components that would go with our robotic arm, which are : 

1. Servomotors: We need a servomotor to provide the movement of the arm. For our project, a standard medium-sized servo motor will be sufficient.

2. Mechanical arm: For the mechanical arm itself, we can use carbon rods or aluminum rods to build the structure. there are several options available in the market that are suitable for our project, such as the SunFounder mechanical arm kit. But we decided to go through the 3D printer.

3. Control card: A control card is needed to manage the movement of the arm. The Arduino Uno board is a great option for this.

4. Cables: We need cables to connect the servo to the control board. You can use 30cm servo cables.

5. Power supply: A power supply is required to power the control board and the servo motor. So, a 9V battery or a 5V power supply.

6. Connectors: We will also need connectors to connect the various components together.

You will find the referencee of each components in the components list.