4th axis coordinates on the table

Hi guys,

I have configured my 4th axis, but I think there are some more settings to be done related to its position in the work area.
How can I specify the position of 4th axis relative to Y and Z axes?

See more details here.

the center of the rotation acording to the mashine ref/home switches is the point to be Homed

Not sure I understand what you said...
Even if I home the machine the rotation center is still in the upper corner.

Thats what you need to belive
your HOME Switch is in the 4th Axis Configuration at Y ((211.44)) not Zero The Number is the mesurment between Switch and Rotation Center

the Same For Z


HOW do i get this

Insert a Lets Say 10mm pin in the Rotation and in the Spindle
DELETE the VAR Files also the BAK In the 4th Axis mashine Folder

Home Y to the Switch (( i think at your its Positiv )) SET the Home Switch Zero
go to touch the pin with the spindle pin in Y direction
You are then in 10mm positiv to the Rotation center TAKE The Screen DRO Y ADD the 10mm
and in the ini the Home_Switch_offset is now that number
Lets say you mesurerd in total from Home Switch to the rotation Center 122.44
then
HOME = 100.0
MIN_LIMIT = -100.0
MAX_LIMIT = 123
HOME_OFFSET = 122.44
HOME_FINAL_VEL = 4.00000
HOME_OFFSET = 3.000000
HOME_SEARCH_VEL = 5.000000
HOME_LATCH_VEL = 2.000000

This will touch the Y Switch to the positiv set the Y Axis to be zero at the Rotation Center
back up 20mm
And your Y Zero is now at the Rotation Center

For the Z do the Same with a Standard tool
i got a 100mm Toolholder the Rotation Center Zero and then use the offsets

BUT You can also get the Spindle Clamp with a Pice of Material to the CENTER Calibrated

So you're saying I should have my zero point in the middle of the table, and aprox +120 and -120 each side of the Y axis. This would set the center of rotation at zero? If my understanding is correct, I assume I should do the same for Z.
I feel I have a confusion about HOME and HOME_OFFSET, I've read the documentation multiple times but something doesn't clicks:
linuxcnc.org/docs/html/config/ini-homing.html#_home_offset
Especially, I don't understand the note:

The home switch location, as indicated by the HOME_OFFSET variable, must be strictly within the soft limits. That is, MIN_LIMIT < HOME_OFFSET < MAX_LIMIT.

I wonder if its a mistake in the documentation.

You can see my actual config files here:
github.com/85vmh/LinuxCncConfigs/tree/master/configs/SyilX7