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CNC Programming Commonly used codes (II)
Wahnish - 11/29/2012
38
Engineering
10th Grade
11/28/2012

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Cards

Term
Feed Rate
Definition
F
Term
Block Number - The line number within the program
Definition
N
Term
Preparatory Codes - Prepare the machine to perform an operation
Definition
G
Term
Miscellaneous Codes - Perform miscellaneous functions within the program
Definition
M
Term
Tool Height and Tool Radius
Definition
H
Term
'O' program number 1 to 9499
Definition
O
Term
Radius
Definition
R
Term
Spindle Speed
Definition
S
Term
Tool called out
Definition
T
Term
Block end
Definition
;
Term
Circle center X - the X coordinate of the circle center for the circular interpolation.
Definition
I
Term
Circle center Y - the Y coordinate of the circle center for the circular interpolation.
Definition
J
Term
Rapid Traverse - move the tool at the maximum rate of feed
Definition
G00
Term
Straight Line Interpolation - move the tool in a straight line to the desired coordinates.
Definition
G01
Term
Circular Interpolation CW - move the tool in a clockwise direction through an arc.
Definition
G02
Term
Circular Interpolation CCW - move the tool in a counter-clockwise directions through an arc.
Definition
G03
Term
Selection of the XY plane.
Definition
G17
Term
G20 (inch), G70 (inch)
Definition
G20
Term
G21 (metric), G71 (metric)
Definition
G21
Term
Cancel cutter compensation.
Definition
G40
Term
Tool length offset, positive. Shifts Z axis in a positive direction by a value in the Offset Table specified by an H code.
Definition
G43
Term
Commands are used to reposition the origin, defined working coordinate system.
Definition
G54
Term
Delete drilling cycle
Definition
G80
Term
Absolute coordinates - makes all coordinates relative to origin.
Definition
G90
Term
Incremental Coordinates - makes new coordinates relative to the last point.
Definition
G91
Term
Feed in inch/minute
Definition
G94
Term
Retract to plane of start
Definition
G98
Term
Pause: Allows your to place a pause in your code. Acts like a G05 pause.
Definition
M00
Term
End of program
Definition
M02
Term
Spindle on clockwise
Definition
M03
Term
Spindle on counter-clockwise
Definition
M04
Term
Spindle off
Definition
M05
Term
End of program: Same as M02
Definition
M30
Term
Edit mode for program changes or entering a program.
Definition
Edit
Term
Manually moving the axis in X,Y,Z
Definition
JOG
Term
Manual Data input mode for manually running the machine
Definition
MDI
Term
Zero Reference or Home Mode
Definition
ZRN
Term
Automatic mode for running a program.
Definition
Automatic
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