ENGG 2100 - Engineering Design II

Oct. 2022 - Dec. 2022

Description

Designed and developed a mechanically powered toy car inspired by Gran Turismo, engineered to fit inside a Kinder Egg while meeting strict dimensional and functional constraints. The final design featured a rubber band–powered pullback mechanism combined with a 2:1 reduction gear transmission system to convert stored potential energy into controlled forward motion.

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The project involved full-cycle engineering design, including concept selection using a decision matrix, detailed Computer-Aided Design modeling and technical drawings, prototype development using three-dimensional printing, and performance testing to improve traction and torque delivery. Design iterations addressed issues such as gear meshing tolerances, wheel slip, and power transmission efficiency.

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Beyond mechanical design, the project included manufacturing and cost analysis, transitioning from additive manufacturing to injection molding for mass production feasibility, as well as break-even analysis and market strategy development. The final product integrated mechanical functionality, user-friendly assembly, safety considerations, and production scalability.