Embedded Files
Overview
Overview
This linear actuator was designed as a personal project to explore motion control and combine CAD, 3D printing, and electronics. The goal was to create a compact actuator that could extend and retract using a small DC motor, with the flexibility to later integrate Arduino control and computer vision. The design focused on keeping the parts simple to manufacture while still providing a platform for testing precision, load capacity, and automation concepts.
Skills: SolidWorks, FDM 3D Printing, DFM, Arduino, C++, DFMA, FEA
Rendering
The render shows the complete actuator assembly, including the outer housing, internal slider, and motor mount. This model represents the finalized concept before manufacturing, giving a clear view of how the moving and stationary parts fit together. It serves as the visual baseline for the mechanical design before starting 3D printing and electronic integration.
Exploded View
The exploded view shows all the main components of the actuator, including the motor, lead screw, slider, gears, bearings, and housing. It illustrates how each part fits together and how motion is transferred from the motor to the extending arm. The inclusion of bearings ensures smoother motion and reduces friction during operation. This view also helped confirm clearances, assembly order, and fastening methods before prototyping, making it easier to spot any alignment or interference issues early in the design.
3D Printing, Arduino Programming, and Final Build
The actuator components were 3D printed to quickly prototype and test the design before moving to more durable materials. Once assembled, the actuator was connected to an L298N motor driver for direction and speed control. An Arduino Uno was programmed to run the motor, allowing the actuator to extend and retract through basic control commands. The setup made it easy to test motion, refine gear alignment, and validate that the 3D-printed parts could handle the loads. These tests also laid the foundation for future upgrades, including computer vision–based control and improved motion feedback.
Bill of Materials (BOM)
The Bill of Materials lists all the components used to build and test the linear actuator, including bearings, fasteners, the DC motor, and control electronics. Most parts were sourced from Amazon and local hardware suppliers for easy accessibility and cost efficiency. Each item was selected to balance performance, availability, and compatibility with 3D-printed components. Keeping a detailed BOM helped track costs, simplify assembly, and ensure the design could be replicated or scaled in future iterations.
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