Multi-axis numerical control
Degree GrantorUniversity of Canterbury
Degree NameMaster of Engineering
This thesis presents the analysis, design and development of a multi-axis machinery numerical control system. The purpose of this research is to provide a numerical control method to overcome the multi-axis numerical control problem. The control system includes an IBM-PC computer as a host processor, a plug in multimotor controller board based on commercial numerical motor controller ICs. These implement a software specified digital control algorithm and output a PWM control number. Six motors, their driven actuators, and digital incremental feedback encoders complete the system. The experimental aspects of the work included the design of the IBM-PC plug in motor controller board and the motor drive board, computer software for real-time control and the system testing. For the theoretical aspects of the work, control theory was used to develop the mathematical model of the system. This aimed at providing a tool to predict and optimize the system performance, therefore, to fulfil the high positioning and high precision control task.