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G-Code


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  Order of execution
  Parameters

G-Codes

  G00 - Rapid Move
  G01 - Linear Feed Move
  G02 - Clockwise Arc Feed Move
  G03 - Counter Clockwise Arc Feed Move

  G04 - Dwell

  G05 - Cubic Spline
  G05.1 - Quadratic Spline
  G05.2 - NURBS Block
  G05.3 - NURBS Block End

  G06 - Shapes Exec
  G06.1 - Shapes Clear
  G06.2 - Shapes Load
  G06.3 - Shapes Process

  G07 - Lathe Mode - Diameter
  G08 - Lathe Mode - Radius

  G09 - Stop, Sync & Set Position

  G10 - Settings

  G12 - Mill: Circular Pocket CW
  G13 - Mill: Circular Pocket CCW

  G15 - Polar Coordinate Cancel
  G16 - Polar Coordinate Enable

  G17 - XY Plane
  G18 - ZX Plane
  G19 - YZ Plane

  G20 - Inch Units
  G21 - Millimeter Units

  G28 - Go To Home
  G28.1 - Set Home
  G30 - Go To Home
  G30.1 - Set Home

  G32 - Spindle Synch Motion
  G33 - Spindle Synch Motion
  G33.1 - Spindle Synch Motion With Return

  G31 - Probe
  G38.1 - Probe
  G38.2 - Probe
  G38.3 - Probe
  G38.4 - Probe
  G38.5 - Probe

  G40 - Tool Compensation Cancel
  G41 - Tool Compensation Left
  G41.1 - Tool Compensation Dynamic Left
  G42 - Tool Compensation Right
  G42.1 - Tool Compensation Dynamic Right

  G43 - Tool Offset+ Enable
  G43.1 - Tool Offset+ Enable
  G44 - Tool Offset- Enable
  G44.1 - Tool Offset- Enable
  G49 - Tool Offset Cancel

  G50 - Axes Scale Cancel
  G51 - Axes Scale Enable

  G52 - Axes Offset
  G52.1 - Axes Offset Cancel

  G53 - Machine Coordinate System

  G54 - Coordinate System 1
  G54.1 - Coordinate System P
  G55 - Coordinate System 2
  G56 - Coordinate System 3
  G57 - Coordinate System 4
  G58 - Coordinate System 5
  G59 - Coordinate System 6 (or P)
  G59.1 - Coordinate System 7
  G59.2 - Coordinate System 8
  G59.3 - Coordinate System 9

  G61 - Blend Cancel
  G64 - Blend Enable

  G65 - Call Macro

  G68 - Axes Rotate Enable
  G69 - Axes Rotate Cancel

  G70 - Inch Units
  G71 - Millimeter Units

  G72 - Mill: Facing
  G72.1 - Mill: Profile
  G72.2 - Mill: Pocket

  G73 - Drill: Drill, Speed Peck, Dwell
  G74 - Tap: Left
  G75 - Turn: Pattern Repeating
  G76 - Turn: Threading
  G77 - Turn: Roughing X
  G78 - Turn: Roughing Z
  G79 - Turn: Grooving

  G80 - Cancel Motion

  G81 - Drill: Drill
  G82 - Drill: Drill, Dwell
  G83 - Drill: Drill, Peck, Dwell
  G84 - Tap: Right
  G85 - Bore: Feed In, Feed Out
  G86 - Bore: Feed In, Spindle Stop, Rapid Out, Spindle Start
  G87 - Bore: Feed In, Spindle Reverse, Rapid Out, Spindle Reverse
  G88 - Bore: Feed In, Spindle Stop, Feed Out, Spindle Start
  G89 - Bore: Feed In, Spindle Reverse, Feed Out, Spindle Reverse

  G90 - Distance Mode - Absolute
  G90.1 - Distance Mode - IJK Absolute
  G90.2 - Distance Mode - ABC Absolute
  G91 - Distance Mode – Incremental
  G91.1 - Distance Mode - IJK Incremental
  G91.2 - Distance Mode - ABC Incremental

  G92 - Working Offset
  G92.1 - Working Offset Set

  G93 - Feed Mode - Inverse Time
  G94 - Feed Mode - Units per Minute
  G95 - Feed Mode - Units per Revolution

  G96 - Spindle Mode - CSS
  G97 - Spindle Mode - RPM

  G98 - Cycle Return - Initial Z Point
  G99 - Cycle Return - R Point

M-Codes

Other Codes

O-Words

Comments

Functions

Operators

Macros

gcode:gcodes:gcode-g84

G84 - Tap: Right

Right tapping cycle.

The G84 tapping cycle initiates the right hand tapping operation at defined XY position at defined height, defined depth for specified thread pitch. G84 cycle can be repeated at any given XY position until cycle is cancelled with G80 or with any other motion command(G01/G00).

Spindle synchronisation can be enabled under File/Settings/Input&Output/Spindle → Synchronisation → Enable

Tapping cycle phases:

Phase 1: XY position
The tapping XY position is determined by the active distance mode and optional XY parameters.

When the cycle code does not include optional XY parameters, the tapping process will occur at the current machine position. This applies regardless of whether the active distance mode is G90 or G91.

If G90 is active and the cycle code includes XY parameters, the tapping process will take place at the position specified by the XY parameters.

If G91 is active and the cycle code includes XY parameters, the tapping process will take place at the position defined by the XY parameters, taking into account the G91 distance mode.

Phase 2: R level
R level is Z height where tapping starts. R level is set with parameter R. Machine Z axis travels to R plane at traverse speed.

Phase 3: Spindle

If spindle is already ON and cycle code does not use parameter S, spindle speed remains as set with pre-existing S value.

If spindle is already ON and cycle code uses parameter S, new spindle speed is set with parameter S value.

If spindle is OFF and cycle code uses parameter S, spindle is turned ON and spindle speed is set with S value.

If spindle is OFF and cycle code does not use parameter S, spindle is turned ON and spindle speed remains as set with pre-existing S value.

Phase 4: Tapping
Tapping operation is determined by the Z and K parameters used with the cycle code as also with TNG spindle synchronisation settings configuration. The Z axis will descend to the bottom Z level at a synchronized feed rate. The feed rate is calculated using the spindle speed value and parameter K.

Spindle speed used for calculation of synchronised motion can be the one set by S command, or the one that TNG calculates using index or encoder AB signals.

Phase 5: Bottom Z, spindle reverse and tapping
Once machine reaches bottom Z level position, spindle is reversed and machine retracts at synchronised feedrate to pre-defined retract height.

Retract height is defined with G98/G99, which can be either R plane or init height value.

If G98 is active, retract height is init height.

If G99 is active, retract height is R plane.

Phase 7: Spindle (OFF)
Spindle is turned off at retract height.

Syntax

G84 <X> <Y> R Z K <S>

Parameters

X X position. (optional)
Y Y position. (optional)
R Top Z.
Z Bottom Z.
K Thread pitch.
S Spindle speed. (optional)

Examples

G98 G84 X0 Y0 R1 Z-15 K1 S750

See also

G74

gcode/gcodes/gcode-g84.txt · Last modified: 2023/06/14 13:43 by planetcnc

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