Last Updated

31st August, 2002

SUMMARY

In this design project, the main aim of this project is to develop a new bowling machine, which is designed for cricket users for practice to develop the reactions and techniques. The objective of this project will design a new ball-throwing device incorporating a low cost non-powered system to propel the balls at the different speeds and rotations.

The spring-powered system should be chosen and used in this main design to provide a non-powered system. It is easily to operate. It is lightweight, portable and compact. It also produces at a lower cost than the other electrically powered machines.

The design processes are started from calculating the force applied to the ball, calculating the moment of inertia, investigating of aerodynamic force of cricket ball, developing the specification of the machine, designing the conceptual design and detail design. Based on the project’s aim, the aerodynamic effects of different spins on pitched cricket balls are investigated. Moreover, the conceptual generation and drawings were produced. According to the project, the detailed CAD drawings were done in the Unigraphics to do the three-dimensional model and two-dimensional drafting. And the animation and mechanism was done 3D Studio Max 4.

Finally, the materials selection and manufactured processes are also the major part in this design project. The durable steel and aluminium were chosen. The user manual should be made to teach how to use the machine properly and should be produced to help the user to use the device.

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