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one more question before i forget: what issue could be encountered by having a different model of servo driver? Given that you are driving both the spindle and c-axis both with step/dir signals, you just need a driver that can output step/dir, right?

Thank you very much! I successfully solved the problem.

Sorry, the error picture of yzEllipse_50.ngc is IMG_6981.JPG not IMG_7058.JPG.

My machine uses a CoreXY system for the XY axis and a linear system for the Z axis.
When I run yzEllipse_60.ngc, the machine stops and reports an error when returning to the home position.(IMG_7058.JPG)
The same issue occurs when running yzEllipse_50.ngc (IMG_7058.JPG).

cofhal - I will look at your files now, I did have another idea as well - could i simply use two stepgens? one for step.dir for spindle and another one for the "C" axis? and have a mesa output pin switch a dpdr relay to simply alter where the same motor gets the input?

Hey - yes I do have the servo manual, however, it is not letting me attach it to the email as it says the attachment size exceeds the result.... Is there any other way I can send it? I would also love to ask you a couple more question on your setup if possible to learn more about how you went about making it incase I need to modify things. Do you have a discord account or something?

I'm not in front of the LinuxCNC machine as I enter this - but I'm not sure I noticed any where I can change the LOCALE? Could you perhaps provide a bit more detail? I'm heading out to the shop right after I press 'Submit' to see if I can find something. Meanwhile - here are the INI and HAL files.

INI:
There was no [SPINDLE] section when I finished with the StepConf. I added the entire '[SPINDLE]' section from a response from Google Gemini.

# Generated by stepconf 1.1 at Thu Apr  3 15:12:55 2025
# If you make changes to this file, they will be
# overwritten when you run stepconf again

[EMC]
MACHINE = X90
DEBUG = 0
VERSION = 1.1

[DISPLAY]
DISPLAY = axis
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/awalde/linuxcnc/nc_files
INCREMENTS = .1in .05in .01in .005in .001in .0005in .0001in

[KINS]
JOINTS = 3
KINEMATICS = trivkins coordinates=XYZ

[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 = X90.hal
HALFILE = custom.hal
POSTGUI_HALFILE = postgui_call_list.hal

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

[SPINDLE]
P=1.0
I=0.0
D=0.0
ENCODER_SCALE=0.0
MAX_RPM=1
MIN_RPM=0
ORIENT_PIN=
ORIENT_SPEED=0

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

#*** 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 = 0.000000
HOME_SEARCH_VEL = 0.050000
HOME_LATCH_VEL = 0.050000
HOME_IGNORE_LIMITS = YES
#******************************************

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

[JOINT_1]
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 = 0.000000
HOME_SEARCH_VEL = 0.050000
HOME_LATCH_VEL = 0.050000
HOME_IGNORE_LIMITS = YES
#******************************************

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

[JOINT_2]
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 = 0.05
MIN_FERROR = 0.01
HOME_OFFSET = 0.0
#******************************************

HAL: (initially generated from StepConf - but significantly edited as I tested the hardware)

# Generated by stepconf 1.1 at Thu Apr  3 15:12:55 2025
# If you make changes to this file, they will be
# overwritten when you run stepconf again
loadrt [KINS]KINEMATICS
loadrt [EMCMOT]EMCMOT base_period_nsec=[EMCMOT]BASE_PERIOD servo_period_nsec=[EMCMOT]SERVO_PERIOD num_joints=[KINS]JOINTS
loadrt hal_parport cfg="0 out"
setp parport.0.reset-time 5000
loadrt stepgen step_type=0,0,0

addf parport.0.read base-thread
addf stepgen.make-pulses base-thread
addf parport.0.write base-thread
addf parport.0.reset base-thread

addf stepgen.capture-position servo-thread
addf motion-command-handler servo-thread
addf motion-controller servo-thread
addf stepgen.update-freq servo-thread

net xstep           => parport.0.pin-01-out
setp parport.0.pin-01-out-reset 1
net yenable         => parport.0.pin-02-out
setp parport.0.pin-03-out-invert 1
net zdir            => parport.0.pin-03-out
net ydir            => parport.0.pin-04-out
net ystep           => parport.0.pin-05-out
setp parport.0.pin-05-out-reset 1
net zenable         => parport.0.pin-06-out
net xdir            => parport.0.pin-07-out
net zstep           => parport.0.pin-08-out
setp parport.0.pin-08-out-reset 1
net spindle-on      => parport.0.pin-09-out
net estop-ext       <= parport.0.pin-10-in
net min-home-z      <= parport.0.pin-11-in
net min-home-y      <= parport.0.pin-12-in
net min-home-x      <= parport.0.pin-13-in
net xenable         => parport.0.pin-14-out

setp stepgen.0.position-scale [JOINT_0]SCALE
setp stepgen.0.steplen 1
setp stepgen.0.stepspace 0
setp stepgen.0.dirhold 70000
setp stepgen.0.dirsetup 70000
setp stepgen.0.maxaccel [JOINT_0]STEPGEN_MAXACCEL
net xpos-cmd joint.0.motor-pos-cmd => stepgen.0.position-cmd
net xpos-fb stepgen.0.position-fb => joint.0.motor-pos-fb
net xstep <= stepgen.0.step
net xdir <= stepgen.0.dir
net xenable joint.0.amp-enable-out => stepgen.0.enable
net min-home-x => joint.0.home-sw-in
net min-home-x => joint.0.neg-lim-sw-in

setp stepgen.1.position-scale [JOINT_1]SCALE
setp stepgen.1.steplen 1
setp stepgen.1.stepspace 0
setp stepgen.1.dirhold 70000
setp stepgen.1.dirsetup 70000
setp stepgen.1.maxaccel [JOINT_1]STEPGEN_MAXACCEL
net ypos-cmd joint.1.motor-pos-cmd => stepgen.1.position-cmd
net ypos-fb stepgen.1.position-fb => joint.1.motor-pos-fb
net ystep <= stepgen.1.step
net ydir <= stepgen.1.dir
net yenable joint.1.amp-enable-out => stepgen.1.enable
net min-home-y => joint.1.home-sw-in
net min-home-y => joint.1.neg-lim-sw-in

setp stepgen.2.position-scale [JOINT_2]SCALE
setp stepgen.2.steplen 1
setp stepgen.2.stepspace 0
setp stepgen.2.dirhold 70000
setp stepgen.2.dirsetup 70000
setp stepgen.2.maxaccel [JOINT_2]STEPGEN_MAXACCEL
net zpos-cmd joint.2.motor-pos-cmd => stepgen.2.position-cmd
net zpos-fb stepgen.2.position-fb => joint.2.motor-pos-fb
net zstep <= stepgen.2.step
net zdir <= stepgen.2.dir
net zenable joint.2.amp-enable-out => stepgen.2.enable

net estop-out <= iocontrol.0.user-enable-out
net estop-ext => iocontrol.0.emc-enable-in

loadusr -W hal_manualtoolchange
net tool-change iocontrol.0.tool-change => hal_manualtoolchange.change
net tool-changed iocontrol.0.tool-changed <= hal_manualtoolchange.changed
net tool-number iocontrol.0.tool-prep-number => hal_manualtoolchange.number
net tool-prepare-loopback iocontrol.0.tool-prepare => iocontrol.0.tool-prepared

 

Upload the hal and ini files here so we can have a look.
In the meantime a stab in the dark would be to change LOCALE to UTF.8 and try making a new config, you can have multiple configs for the same machine.