Overview: For my open-ended class project, I explored the concept of a linkage-based robotic arm as a cost-effective and versatile alternative to traditional multi-actuator arms. Recognizing that many industrial robotic arms are often over-specked for simpler tasks due to their complexity and cost, I aimed to design a mechanism capable of executing complex motions with a single input.
Design and Application: The approach focuses on developing a planar robotic arm that mimics human-like movements such as rotation at the shoulder, extension through a modified elbow, and object manipulation akin to a hand. This design is particularly advantageous for applications like moving objects between conveyor belts in warehouses, offering a more economical and robust solution compared to multi-actuator arms. The project's objective is to provide a practical and efficient tool for tasks requiring precise motion control. The associated video showcases the diverse applications of robotic arms in real-world scenarios.
Overview: I designed a crank linkage mechanism that can lift at least 10 Newtons of force that is attached to a 100 mm cantilevered slider block.
Physical Design: I utilized SolidWorks to design and build the mechanism to ensure optimal performance. I reinforced the design to account for areas of high stress, designed a set-screw and heat insert couple to fix a 3D printed crank to a steel rod, machined components to high precision to reduce overall linkage play to under 1 mm, included press-fitted bearings for smooth travel, and kept aesthetics in mind.
Manufacturing: I utilized 3D printers for the black plastic components, laser cutters for the wooden links, brackets, and baseplate, and an angle grinder to cut and bevel the steel shafts.
Overview: For our intro project, I designed, coded, and built a model car that can be controlled with a joystick.
Electrical Hardware: I utilized an Arduino and motor controller to achieve forward, backward, and turning functionality. The code utilizes the relative x and y coordinate positions of the joystick to increase or decrease motor spin, achieving movement.
Physical Design: Constructed from a repurposed foam board, the car features a lightweight yet sturdy design. A gold-plated fashionable hood conceals the electronics and contributes to a sporty feel.