G54 offset - how to?

Hello people,
We're using Axis 2.5.0 with a custom built lathe for many years now. We've never quite understood how to use an offset like we have on our regular industrial lathe. We're used to just putting an offset to the G54 parameter and the system will simply offset the whole program to that measure.
On Axis we're trying o use the "touch off" button to do that but it always sets G54 to the current position, minus or plus the offset that we input, not to the desired offset.

Sorry if I didn't make myself clear, I can try to explain it better if needed!

Thanks in advance!
Felipe

Maybe a better way to describe AXIS's touch-off is 'origin setting'.
You type in what ever value you want the current position to be.
To offset you would need to take the position you are at and add or subtract the offset amount and use that value in touchoff.

Chris M

G54-G59 are the WORKPICE OFSETS

the offsets you probebly mean are in the tooltable
where T1 is "shoudt be" the Equal ZERO
so you "touch off" workpice with that tool loaded T1 M6
then the other tools are relative to that

saying load tool 2 T2 M6
go to X Workpice and give the offset to the TOOLTABLE

As we use offset from machine origin on our production machines, maybe this info, copied from the manual, helps.

G10 L2 P-<axes R-> • P-coordinate system (0-9) • R-rotation about the Z axis
G10 L2 offsets the origin of the axes in the coordinate system specified to the value of the axis word. The offset is from the machine origin established during homing.
So for G54 would be G10 L2 P1 X Y Z

there are 2 Behaviors on G10 L2 or G10 L20
see
www.linuxcnc.org/docs/html/gcode/g-code.html#gcode:g10-l2
www.linuxcnc.org/docs/html/gcode/g-code.html#gcode:g10-l20

Wow thanks a lo guys!

pl7i92 wrote:

there are 2 Behaviors on G10 L2 or G10 L20
see
www.linuxcnc.org/docs/html/gcode/g-code.html#gcode:g10-l2
www.linuxcnc.org/docs/html/gcode/g-code.html#gcode:g10-l20

Reading this helped us as lot! This is exactly what we needed!

cmorley wrote:

Maybe a better way to describe AXIS's touch-off is 'origin setting'.
You type in what ever value you want the current position to be.
To offset you would need to take the position you are at and add or subtract the offset amount and use that value in touchoff.

Chris M

This was also very helpful to fully understand the "touch off" function, and even to use it to set our desired offset considering the current position.



Thanks to everybody who replied! You guys rock!