Rotary axis relative to offset

Hi,

Is it possible to make AXIS to draw 4th axis toolpaths around offset coordinates rather than around absolute YZ zero?
At the moment I have the following in .ini:

[DISPLAY]
...
GEOMETRY = AXYZ

[TRAJ]
AXES = 4
COORDINATES = A X Y Z

When I jog A axis it always moves around the absolute Y and Z zero coordinates rather then around Y and Z zero coordinates set with touchoff or G92.
My rotary axis is not fixed to the machine so whenever I install it on the machine the absolute Y position is different so unless I change absolute Y zero in .ini every time the toolpaths are not displayed correctly. Toolpaths look like this:

andypugh wrote:

Unfortunately not.
The problem is that there is no way for Axis to know where you want the centre of rotation to be.

Thank you, I understand now it is not possible (spent days trying to figure out how to do it) but out of curiosity aren't we're telling Axis using Y and Z touchoffs where we want the centre of rotation to be?

Is it possible (difficult) to add a function to Axis which, like touchoffs, sets centres of rotation for ABC axises?

Hi,
this topic here is pretty old. Is there a common solution by now?

I just installed a removable rotary axis and recognized, that the center of rotation is the machine orgin, not where it acutually is.

I'm wondering: what is the common way to do this?
* Shouldn't the WCS always be in the center of the rotary axis? Can I enforce it to be?
* How can I touchoff my rotary axis in order to tell axis - well here is the rotational origin

Thanks a lot
BTW my version of linux cnc is pretty old, too (from 2015). If there is a solution, please tell me which version I need.
Schorsch