A CNC router machine is normally controlled by a computer with
software. However, most CNC router machines have a range of controls for manual
use. It is rare for a CNC router machine to be used manually as simple
operations are best carried out on cheap/basic/manual machines. When a CNC router
machine is used manually it is been used well below its capability and
specification.
RESET BUTTON: The must
important control button is usually the reset button. When the CNC machine is
turned on, the reset button is pressed by the machine operator. This ‘zeros’
the cutter, moving the cutter to coordinates 0,0,0 on the X, Y and Z axis. In
simple terms, the reset button moves the cutter to the corner of the machine, above
the work table. If the reset button is not pressed, it is possible that the CNC
machine will start cutting the material in the wrong place or even miss cutting
the material and plunge into the work table.
MANUAL CONTROL: The cutter can be controlled manually although this is rarely needed. The ‘X’ and ‘Y’ buttons control the movement of the cutter along the horizontal surfaces. The ‘Z’ buttons control depth and up / down movement.
STOP BUTTON: Most control panels have stop buttons. When pressed these stop the machine very quickly.
SPEED AND FEED: On some CNC machines it is possible to manually vary the speed and feed of the cutter.
QUESTIONS:
1. Study a CNC machine in your workshop. Draw a simple diagram of the control panel and label the main buttons.
2. Why do CNC machines also have manual controls?
1. Study a CNC machine in your workshop. Draw a simple diagram of the control panel and label the main buttons.
2. Why do CNC machines also have manual controls?
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