Key Topics

The Role of Housing in Protecting Electronic Components

In this stage, the goal was not to design the overall structure of the robotic arm but to design a housing able to hold and protect the electronic components.

The robotic arm was controlled by ESP board, a PWM servo driver, and wiring that can be easily shifted due to the external impact or movement. Thus, a need existed for a structure to organize and secure these components within one enclosure. Through this process, it became clear that the housing is not merely an external casing but an important component that contributes to the overall stability of the system.

Housing Modeling Using CAD

The housing was designed using CAD software (Tinkercad).

The following factors were considered during the modeling process:

• Measuring the actual sizes of the ESP board and PWM servo driver
• Internal structures designed to hold the boards in place
• Creating basic holes for cable routing
• Maintaining a simple structure for easy assembly and disassembly

For this project only the housing for the electronic components was modeled, not the whole robotic arm frame. The design was focused on the basic shape and component layout.

Hands-on Practice

Housing Modeling and 3D Printing

Based on the CAD design, the housing was fabricated using a 3D printer.

After printing, the following tasks were completed:

• Mounting the ESP board
• Positioning the PWM servo driver