G54 offset - how to?

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25 Sep 2019 20:16 #146180 by fferraz
G54 offset - how to? was created by fferraz
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

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26 Sep 2019 02:24 #146213 by cmorley
Replied by cmorley on topic G54 offset - how to?
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

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26 Sep 2019 07:24 #146225 by pl7i92
Replied by pl7i92 on topic G54 offset - how to?
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

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26 Sep 2019 13:17 #146253 by MaHa
Replied by MaHa on topic G54 offset - how to?
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

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26 Sep 2019 13:56 #146259 by pl7i92
The following user(s) said Thank You: yeltrow

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26 Sep 2019 17:28 #146289 by fferraz
Replied by fferraz on topic G54 offset - how to?
Wow thanks a lo guys!

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!


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! :)

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