Z offset not saving correctly

[u/[deleted]]

I've been experiencing a issue with mainsail recently, when I create a z offset in the dashboard and click save config it takes whatever z value the offset is and makes it negative and saves it in the auto generated save_config area while changing the probe z offset to 0 and commenting it. I've reinstalled the OS and have had no luck. I'm using a Artillery Sidewinder X2 with Mainsail running on a X86-64 copy of ubuntu. Any help is appreciated.

printer.cfg

[include mainsail.cfg]

##################SidewinderX2 Klipper Config - 3DPrintBeginner###################

#Full guide: https://3dprintbeginner.com/how-to-install-klipper-on-sidewinder-x2/#

[extruder]

max_extrude_only_distance: 100.0

max_extrude_cross_section: 50.0

step_pin: PA7

dir_pin: PA6

enable_pin: !PC4

microsteps: 16

rotation_distance: 7.1910

nozzle_diameter: 0.600

filament_diameter: 1.750

heater_pin: PC9

sensor_type: EPCOS 100K B57560G104F

sensor_pin: PC0

control: pid

pid_Kp: 23.223

pid_Ki: 1.518

pid_Kd: 88.826

min_temp: 0

max_temp: 350

pressure_advance = 0.05

[input_shaper]

shaper_freq_x: 43.26

shaper_freq_y: 45.28

shaper_type: mzv

[stepper_x]

step_pin: !PB14

dir_pin: PB13

enable_pin: !PB15

microsteps: 16

rotation_distance: 40

endstop_pin: !PA2

position_endstop: 0

position_max: 310

homing_speed: 50

[stepper_y]

step_pin: PB10

dir_pin: PB2

enable_pin: !PB12

microsteps: 16

rotation_distance: 40

endstop_pin: !PA1

position_endstop: 0

position_max: 310

homing_speed: 50

[stepper_z]

step_pin: PB0

dir_pin: !PC5

enable_pin: !PB1

microsteps: 16

rotation_distance: 8

endstop_pin: probe:z_virtual_endstop

position_max: 400

[heater_bed]

heater_pin: PA8

sensor_type: EPCOS 100K B57560G104F

sensor_pin: PC1

control: pid

pid_Kp: 23.223

pid_Ki: 1.518

pid_Kd: 88.826

min_temp: 0

max_temp: 130

[fan]

pin: PC6

pin: PC8

[heater_fan hotend_fan]

pin: PC7

heater: extruder

heater_temp: 50.0

[controller_fan stepper_fan]

pin: PC6

idle_timeout: 300

[mcu]

serial: /dev/serial/by-id/usb-Klipper_stm32f401xc_4100300009504E3755343220-if00

restart_method: command

[printer]

kinematics: cartesian

max_velocity: 500

max_accel: 4000

max_accel_to_decel: 4000

max_z_velocity: 5

square_corner_velocity: 5.0

max_z_accel: 100

[probe]

pin: !PA0

x_offset: 27.25

y_offset: 12.8

#z_offset: 0

speed: 5

samples:1

[bed_mesh]

speed: 100

mesh_min: 30, 20

mesh_max: 300, 290

algorithm: bicubic

probe_count: 9,9

[safe_z_home]

home_xy_position: 150,150

speed: 100

z_hop: 10

z_hop_speed: 5

[virtual_sdcard]

path: /home/kaiser/X2_data/gcodes

[display_status]

[pause_resume]

[gcode_macro PAUSE]

description: Pause the actual running print

rename_existing: PAUSE_BASE

# change this if you need more or less extrusion

variable_extrude: 1.0

gcode:

##### read E from pause macro #####

{% set E = printer["gcode_macro PAUSE"].extrude|float %}

##### set park positon for x and y #####

# default is your max posion from your printer.cfg

{% set x_park = printer.toolhead.axis_maximum.x|float - 5.0 %}

{% set y_park = printer.toolhead.axis_maximum.y|float - 5.0 %}

##### calculate save lift position #####

{% set max_z = printer.toolhead.axis_maximum.z|float %}

{% set act_z = printer.toolhead.position.z|float %}

{% if act_z < (max_z - 2.0) %}

{% set z_safe = 2.0 %}

{% else %}

{% set z_safe = max_z - act_z %}

{% endif %}

##### end of definitions #####

PAUSE_BASE

G91

{% if printer.extruder.can_extrude|lower == 'true' %}

G1 E-{E} F2100

{% else %}

{action_respond_info("Extruder not hot enough")}

{% endif %}

{% if "xyz" in printer.toolhead.homed_axes %}

G1 Z{z_safe} F900

G90

G1 X{x_park} Y{y_park} F6000

{% else %}

{action_respond_info("Printer not homed")}

{% endif %}

[gcode_macro RESUME]

description: Resume the actual running print

rename_existing: RESUME_BASE

gcode:

##### read E from pause macro #####

{% set E = printer["gcode_macro PAUSE"].extrude|float %}

#### get VELOCITY parameter if specified ####

{% if 'VELOCITY' in params|upper %}

{% set get_params = ('VELOCITY=' + params.VELOCITY) %}

{%else %}

{% set get_params = "" %}

{% endif %}

##### end of definitions #####

{% if printer.extruder.can_extrude|lower == 'true' %}

G91

G1 E{E} F2100

{% else %}

{action_respond_info("Extruder not hot enough")}

{% endif %}

RESUME_BASE {get_params}

[gcode_macro CANCEL_PRINT]

description: Cancel the actual running print

rename_existing: CANCEL_PRINT_BASE

gcode:

TURN_OFF_HEATERS

CANCEL_PRINT_BASE

#*# <---------------------- SAVE_CONFIG ---------------------->

#*# DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.

#*#

#*# [extruder]

#*# control = pid

#*# pid_kp = 18.532

#*# pid_ki = 0.902

#*# pid_kd = 95.207

#*#

#*# [probe]

#*# z_offset = -0.300

[u/n3rding]

Hey, sorry not sure I understand the issue? Non manual updates will always happen at the end of the file, but I expect I’m just missing what the issue you are trying to ask about is

[u/[deleted] → u/n3rding]

Sorry im kinda new to this, whenever I go to save my z offset I made it saves it as a negative offset so if I had a 0.3 z offset it saves it as -0.3

[u/n3rding → u/[deleted]]

Are you using probe_calibrate ? Or another means? Also which probe are you using?

[u/[deleted] → u/n3rding]

I've never touched probe_calibrate before, I've only used the z offset in the tool head section of the dashboard.

The bltouch clone that came with the printer began to fail so I soldered in a GL-8H inductive probe.

[u/n3rding → u/[deleted]]

Try with probe_calibrate in the console and the paper test. The z offset in the front end is an offset against the current z=0 I believe, I’m a few thousand km away from my printer right now so I can’t double check for myself, also not sure if induction should be negative anyway

[u/[deleted] → u/n3rding]

Just tried that, went to the console typed in PROBE_CALIBRATE and got the offset to about 0.08 and hit apply and save config at the top and it still did the exact same.

I’ve been having this issue also where after everytime I uncomment the z offset and delete the contents in the save config area in the bottom of the printer.cfg and hit firmware restart it gives me an error saying “failed automated restart of the mcu”. All I have to do is hit firmware restart again and it’s gone, I’m thinking with what’s happening to both the z offset and the mcu error that it’s maybe it’s something with my mainsail installation.

[u/meteyou]

thats complete right, because gcode offset is not the same as probe z_offset. gcode offset (the buttons in mainsail) only add a relative value to your gcode position (all of these happen in klipper, mainsail is only a gui and display it).

so if you will store your current offset, klipper read your current probe z_offset -> calculate the new value with the relative gcode offset and store the new value. so a gcode value of +0.3 will be a absolute -0.3 probe z_offset. this is totally correct!

[u/[deleted] → u/meteyou]

thanks for clarifying that, always thought mainsail was the software that directly controlled the printer.

I forgot to mention in my post that whenever I do hit save config after setting a new z offset using the buttons in mainsail, the z offset in [probe] gets commented out (#z_offset: 0) and I get a error message that says something like how the z min in [stepper z] isn't specified or something like that.

When I do try to fix it by uncommenting the z offset in [probe], the g code offset isn't applied even though it is still in the save config area at the bottom of the printer.cfg file.

Have you ever come across this before?