Automated Table Tennis Ball Launcher
University Team Project
Project Overview
Designed and built a fully automated table tennis ball launcher capable of firing balls into three separate regions of a table without human interaction. The project focused on mechanical simplicity, reliability, and effective motion control through the integration of multiple subsystems including a launching mechanism, feeding system, and oscillation system.
Software
- CAD Modelling (Inventor)
Methods
- Mechanical Design & Prototyping
- Concept Development & Iteration
- Design for Assembly
Analysis
- Kinematic Analysis of Linkages
- Failure Mode Consideration
- System Integration
Project Details
Led the concept design of the launcher, developing a simple and reliable system architecture that was selected as the final team design.
Designed a ball feeding system using a piston mechanism to ensure controlled single-ball delivery and prevent jamming or misalignment.
Implemented a dual-wheel launching mechanism to accelerate and project balls using friction-based propulsion.
Developed an oscillation system using a linkage mechanism to convert rotational motion into controlled angular movement across three target zones.
Created a full CAD assembly and defined key dimensions to ensure proper integration and manufacturability of components.
Key Results
- Successfully built a working prototype capable of automated ball launching and oscillatory motion across the table.
- Demonstrated reliable single-ball feeding using a piston mechanism, eliminating jamming issues seen in gravity-fed designs.
- Identified synchronisation issues between oscillation and firing systems, resulting in inconsistent shot placement.
- Observed insufficient launch distance due to limitations in wheel speed and energy transfer.
- Highlighted key improvements including better motor control synchronisation and increased wheel speed for enhanced performance.
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