Difference between revisions of "G-Code Cheatsheet"

Revision as of 16:03, 26 July 2014

G Codes

G Code	Description
G0	Rapid Linear Motion
G1	Linear Feed
G2	CW Arc Feed
G3	CCW Arc Feed
G4	Dwell
G5.1	Quadratic B-Spline
G5.2 G5.3	NURBs Block
G7	Diameter Mode (lathe)
G8	Radius Mode (lathe)
G10 L1	Set Tool Table Entry
G10 L10	Set Tool Table, Calculated, Workpiece
G10 L11	Set Tool Table, Calculated, Fixture
G10 L2	Coordinate System Origin Setting
G10 L20	Coordinate System Origin Setting Calculated
G17	XY Plane
G18	ZX Plane
G19	YZ Plane
G17.1	UV Plane
G18.1	WU Plane
G19.1	VW Plan
G20	Inch Units
G21	Millimeter Units
G28	Go to Predefined Position
G28.1	Store Current Absolute Position for G28
G30	Go to Predefined Position
G30.1	Store Current Absolute Position for G30
G33	Spindle Synchronized Motion
G33.1	Rigid Tapping
G38.2 – G38.5	Probing
G38.2	Probe toward workpiece, stop on contact, signal error if failure
G38.3	Probe toward workpiece, stop on contact
G38.4	Probe away from workpiece, stop on loss of contact, signal error if failure
G38.5	Probe away from workpiece, stop on loss of contact
G40	Cutter Compensation Cancel
G41	Cutter Compensation Left of Path
G42	Cutter Compensation Right of Path
G41.1	Dynamic Cutter Compensation Left of Path
G42.1	Dynamic Cutter Compensation Right of Path
G43	Tool Length Offset
G43.1	Dynamic Tool Length Offset
G49	Cancel Tool Length Offset
G53	Motion in Machine Coordinate System
G54	Select Coordinate System 1
G55	Select Coordinate System 2
G56	Select Coordinate System 3
G57	Select Coordinate System 4
G58	Select Coordinate System 5
G59	Select Coordinate System 6
G59.1	Select Coordinate System 7
G59.2	Select Coordinate System 8
G59.3	Select Coordinate System 9
G61	Exact Path Mode (Path Control Mode)
G61.1	Exact Path Mode (Path Control Mode)
G64	Path Control Mode with Optional Tolerance
G73	Drilling Cycle with Chip Breaking
G76	Multi-pass Threading Cycle (Lathe)
G80	Cancel Canned Cycle
G81	Drilling Cycle
G82	Drilling Cycle with Dwell
G83	Peck Drilling Cycle
G85	Boring Cycle, Feed Out
G86	Boring Cycle, Spindle Stop, Rapid Out
G89	Boring Cycle, Dwell, Feed Out
G90	Absolute Distance Mode
G91	Incremental Distance Mode
G90.1	Absolute Distance Mode for Arc (I, J & K offsets)
G91.1	Incremental Distance Mode for Arc (I, J & K offsets)
G92	Coordinate System Offset
G92.1	Cancel Coordinate System Offsets
G92.2	Cancel Coordinate System Offsets
G92.3	Restore Axis Offsets
G93	Inverse Time Mode
G94	Units per Minute Mode
G95	Units per Revolution Mode
G96	Constant Surface Speed
G97	RPM Mode
G98	Retract to Start Position (Canned Cycle Z Retract Mode)
G99	Retract to R Position (Canned Cycle Z Retract Mode)

M Codes

M Code	Description
M0 M1	Program Pause
M2 M30	Program End
M60	Pallet Change Pause
M3 M4 M5	Spindle Control
M6	Tool Change
M7 M8 M9	Coolant Control
M48 M49	Feed / Spindle Overrides Enable/Disable
M50	Feed Override Control
M51	Spindle Override Control
M52	Adaptive Feed Control
M53	Feed Stop Control
M61	Set Current Tool Number
M62-M65	Output Control
M66	Input Control
M67	Analog Output Control
M68	Analog Output Control
M100-M199	User Defined M codes

Binary Operators


Operator	Description
Addition
Subtraction
*	Multiplication
/	Division
OR	Non-exclusive or
XOR	Exclusive or
AND	Logical and
MOD	Modulus operation
**	Power operation
EQ	Equality (EQ)
NE	Inequality (NE)
GT	Strictly greater than
GE	Greater than or equal to
LT	Strictly less than
LE	Less than or equal to

Functions

Function Name	Function Result
ATAN[Y]/[X]	Four quadrant inverse tangent
ABS[arg]	Absolute value
ACOS[arg]	Inverse cosine
ASIN[arg]	Inverse sine
COS[arg]	Cosine
EXP[arg]	e raised to the given power
FIX[arg]	Round down to integer
FUP[arg]	Round up to integer
ROUND[arg]	Round to nearest integer
LN[arg]	Base-e logarithm
SIN[arg]	Sine
SQRT[arg]	Square Root
TAN[arg]	Tangent
EXISTS[arg]	Check named Parameter

Words Letters

Letter	Meaning
A	A axis of machine
B	B axis of machine
C	C axis of machine
D	Tool radius compensation number
F	Feed rate
G	General function (See table Modal Groups)
H	Tool length offset index
I	X offset for arcs and G87 canned cycles
J	Y offset for arcs and G87 canned cycles
K	Z offset for arcs and G87 canned cycles. Spindle-Motion Ratio for G33 synchronized movements.
M	Miscellaneous function (See table Modal Groups)
N	Line number
P	Dwell time in canned cycles and with G4. Key used with G10.
Q	Feed increment in G73, G83 canned cycles
R	Arc radius or canned cycle plane
S	Spindle speed
T	Tool selection
U	U axis of machine
V	V axis of machine
W	W axis of machine
X	X axis of machine
Y	Y axis of machine
Z	Z axis of machine
/	Block delete
()	Comments
;	Comments
MSG,	Messages

Common Error Messages

G code out of range
A G code greater than G99 was used, the scope of G codes in LinuxCNC is 0 – 99. Not every number between 0 and 99 is a valid G code.

Unknown g code used
A G code was used that is not part of the LinuxCNC G code language.

i,j,k word with no Gx to use it
i, j and k words must be used on the same line as the G code.

Cannot use axis values without a g code that uses them
Axis values can not be used on a line without either a modal G code in effect or a G code on the same line.

File ended with no percent sign or program end
Every G code file must end in a M2 or M30 or be wrapped with the percent sign %.