Friday, January 20, 2017

System Configuration of CNC Router Design - Input, Process and Output

System Configuration of CNC Router Design - Input, Process and Output

A CNC production facility requires three parts of equipment:


A Computer.
The computer is used to draw the design. CAD - Computer Aided Design software is used for this purpose. However, the design is only a picture and the CNC machine cannot use this to manufacture the product. The computer software must also convert the picture into numbers (coordinates) that the CNC machine can use when it starts to cut and shape the materials.

An Interface.
A computer cannot be directly connected to a CNC machine. The computer must be connected to an interface. Modern CNC machines have a ‘built-in’ or integral interface, which appears to be part of the CNC machine. This circuit converts the signals from the computer to a form that the CNC machine can recognize and understand. Older CNC machines have a separate ‘box’ called the interface. The signals are in the form of digital signals when they are sent to the CNC machine for coming processing.

CNC (Computer Numerical Control) Machine.
The signals from the interface control the motors on the CNC machine to move and act. The signals determine the way the vice moves. The vice moves in three directions X, Y and Z. (Horizontally, vertically and depth). The signals also control the speed for the cutting tool to move.


The whole process of designing and making an item using the CNC machine can be divided into three aspects INPUT-PROCESS-OUTPUT. The diagram below shows this system.


QUESTION:
Draw the systems diagram shown above and manage to explain what happens in the INPUT, PROCESS and OUTPUT sections.


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