Leading Edge HX8410 User Manual - page 17
G90
Switch to
absolute
distance mode
Coordinates are now relative to the origin of the currently
active coordinate system, as opposed to the current
position. G0 X-10 Y5 will move to the position 10 units
to the left and 5 above the origin X0,Y0. cf. G91 below.
All Grbl versions
G91
Switch to
incremental
distance mode
Coordinates are now relative to the current position, with
no consideration for machine origin. G0 X-10 Y5 will
move to the position 10 units to the left and 5 above the
current position. cf. G90 above.
All Grbl versions
G91.1
Arc radius
mode
(offset mode, for certain CAM programs) incremental distance mode for arcs
(v0.9i or later)
G92
Coordinate
offset. Change
the current
coordinates
without moving
e.g. "G92 x0 y0 z0" makes the current position a temporary home position.
The intent is to allow one to re-use code (say for a part when doing multiples)
which has a given origin. The temporary origin can then be cleared and the
actual machine origin, set via G10 restored by the command below.
All Grbl versions
G92.1
Clear
(temporary)
Coordinate
System Offsets
Previously set by G92 (see above).
(v0.8 or later)
G93
Set inverse time
feed rate mode
An F word is interpreted to mean that the move should be
completed in (one divided by the F number) minutes. For
example, if F is 2, the move should be completed in half
a minute
All Grbl versions
G94
Set units per
minute feed rate
mode
An F Word is interpreted to mean the controlled point
should move at a certain number of units (or degrees) per
minute
All Grbl versions