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I did do what RodW said to do and from that I figured to add "HOME_SEQUENCE = -1" to the two Y motors. would there be anything else I need to add in the INI files?
Also I don't know if you want to take a look but if you do here it is

# Generated by stepconf 1.1 at Fri Apr 25 14:44:59 2025
# If you make changes to this file, they will be
# overwritten when you run stepconf again

[EMC]
MACHINE = 22222222222222
DEBUG = 0
VERSION = 1.1

[DISPLAY]
DISPLAY = gmoccapy
EDITOR = gedit
POSITION_OFFSET = RELATIVE
POSITION_FEEDBACK = ACTUAL
ARCDIVISION = 64
GRIDS = 10mm 20mm 50mm 100mm 1in 2in 5in 10in
MAX_FEED_OVERRIDE = 1.2
MIN_SPINDLE_OVERRIDE = 0.5
MAX_SPINDLE_OVERRIDE = 1.2
DEFAULT_LINEAR_VELOCITY = 0.10
MIN_LINEAR_VELOCITY = 0
MAX_LINEAR_VELOCITY = 1.00
CYCLE_TIME = 0.100
INTRO_GRAPHIC = linuxcnc.gif
INTRO_TIME = 5
PROGRAM_PREFIX = /home/probotix/linuxcnc/nc_files
INCREMENTS = .1in .05in .01in .005in .001in .0005in .0001in

[KINS]
JOINTS = 4
KINEMATICS = trivkins coordinates=XYYZ kinstype=BOTH

[FILTER]
PROGRAM_EXTENSION = .png,.gif,.jpg Greyscale Depth Image
PROGRAM_EXTENSION = .py Python Script
PROGRAM_EXTENSION = .nc,.tap G-Code File
png = image-to-gcode
gif = image-to-gcode
jpg = image-to-gcode
py = python

[TASK]
TASK = milltask
CYCLE_TIME = 0.010

[RS274NGC]
PARAMETER_FILE = linuxcnc.var

[EMCMOT]
EMCMOT = motmod
COMM_TIMEOUT = 1.0
BASE_PERIOD = 100000
SERVO_PERIOD = 1000000

[HAL]
HALFILE = 22222222222222.hal
HALFILE = custom.hal
POSTGUI_HALFILE = postgui_call_list.hal

[TRAJ]
COORDINATES = X Y Y Z
LINEAR_UNITS = inch
ANGULAR_UNITS = degree
DEFAULT_LINEAR_VELOCITY = 0.10
MAX_LINEAR_VELOCITY = 1.00

[EMCIO]
EMCIO = io
CYCLE_TIME = 0.100
TOOL_TABLE = tool.tbl

#*** AXIS_X *******************************
[AXIS_X]
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0

[JOINT_0]
TYPE = LINEAR
HOME = 0.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
STEPGEN_MAXACCEL = 37.5
SCALE = 8000.0
FERROR = 0.05
MIN_FERROR = 0.01
HOME_OFFSET = 0.0
#******************************************

#*** AXIS_Y *******************************
[AXIS_Y]
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 10.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0

[JOINT_1]
HOME_SEQUENCE = -1
TYPE = LINEAR
HOME = 0.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 10.0
STEPGEN_MAXACCEL = 12.5
SCALE = 4000.0
FERROR = 0.05
MIN_FERROR = 0.01
HOME_OFFSET = 0.0

[JOINT_2]
HOME_SEQUENCE = -1
TYPE = LINEAR
HOME = 0.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 10.0
STEPGEN_MAXACCEL = 12.5
SCALE = 4000.0
FERROR = 0.05
MIN_FERROR = 0.01
HOME_OFFSET = 0.0
#******************************************

#*** AXIS_Z *******************************
[AXIS_Z]
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
MIN_LIMIT = -4.0
MAX_LIMIT = 0.01

[JOINT_3]
TYPE = LINEAR
HOME = 0.0
MIN_LIMIT = -4.0
MAX_LIMIT = 0.01
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
STEPGEN_MAXACCEL = 37.5
SCALE = 8000.0
FERROR = 1
MIN_FERROR = .25
HOME_OFFSET = 0.0
#******************************************

Ok so what im getting is that if two joints have a HOME_SEQUENCE = -1 then that tells the two motors to run together right?

No, not yet.
Now is that point where you upload your configuration files here so we can have a look, joint errors are usually miss configuration on stepper systems.
What board are you using?

Please check your ethercat.xml file to see if it contains this pin. Similar to...... <pdoEntry idx="6040" subIdx="00" bitLen="16" halPin="cia-controlword" halType="u32"/>

Junction error 1: This error only occurs when I watch YouTube videos. With only LinuxCNC running and CPU stress test (and rustdesk remote desktop), the job runs without errors until the end.
this is the end of my machine?

How are you controlling 4 axes with a 3-axis driver?

OK then, feel free to poke around, you are always welcomed.
I was thinking you have some non standard stuff or end result, hence my jumping in.
Thank you.

Looks perfectly fine, so do some tests with Mesa card attached and again do copy some stuff around, play video, etc, see if it drops the link.
If not, move on to making chips!

Tommy, thanks for taking the interest.

My aim was to simply improve my knowledge of some of the more exotic GCode.

As stated, my assumption on what G10 can do is incorrect.

My skill base has, however, improved because I can now use G10 for its intended use of setting up Offsets for multiple jobs.

Thanks , this is result with nouveau(and rustdesk for remote desktop):
 

It would be much easier to help you if you told us what are you trying to achieve or what the end result should be or ...

DarkPhoinix wrote:

60000 packets transmitted, 60000 received, 0% packet loss, time 59999ms
rtt min/avg/max/mdev = 0.178/0.253/0.441/0.031 ms

Much better.

DarkPhoinix wrote:

i have system with the nvidia proprietary driver i need to go back to nouveau?

Most probably, but if it is working with RT kernel, do give it a try
latency-histogram --nobase --sbinsize 1000 --show
while playing youtube, skipping through it and maximizing/minimizing the video.

installed [code]r8168:

ping -c 4 -i .2 10.10.10.10
PING 10.10.10.10 (10.10.10.10) 56(84) bytes of data.
64 bytes from 10.10.10.10: icmp_seq=1 ttl=255 time=0.298 ms
64 bytes from 10.10.10.10: icmp_seq=2 ttl=255 time=0.308 ms
64 bytes from 10.10.10.10: icmp_seq=3 ttl=255 time=0.273 ms
64 bytes from 10.10.10.10: icmp_seq=4 ttl=255 time=0.273 ms

--- 10.10.10.10 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 610ms
rtt min/avg/max/mdev = 0.273/0.288/0.308/0.015 ms


chrt 99 ping -i .001 -q -c  60000 10.10.10.10
PING 10.10.10.10 (10.10.10.10) 56(84) bytes of data.

--- 10.10.10.10 ping statistics ---
60000 packets transmitted, 60000 received, 0% packet loss, time 59999ms
rtt min/avg/max/mdev = 0.178/0.253/0.441/0.031 ms

no packet loss this time with r8168!! thanks !

i have system with the nvidia proprietary driver i need to go back to nouveau?

Thanks for the response.

Once my machine is set-up correctly, I successfully use multiple Offsets to do jobs on the table.

I started this investigation of G10 'assuming' that it was used to set-up the machine without having to physically move it to the Home position.

So far, that assumption has been demonstrated to be false.

What does one do if the machine cannot be physically moved to its Home position ?
For example, a large job mounted prior to machine start-up, or a vice.

Note: I simulate physical table movement at start-up by operating the controls with steppers Off to the position measured by ruler.

NVIDIA proprietary drivers do not work with RT kernel and neither do new AMD drivers.
Most of the time NVIDIA cards will cause latency spikes and should not be used for machine control, but i have plenty of GTX1060 and GTX1070 that are usable with NOVEAU drivers, older ones will mess latency badly, and even the ones i have on some motherboards do cause issues, so it's a cr@p shoot.
First, fix the ethernet latency, disable power saving options in BIOS and hyperthreading and TPM and..., then we can see what still needs to be done.