Sensorless homing (X and Y) no longer works after configuring TAP

voronstress · August 30, 2023

I spent all afternoon trying to get the X and Y working for sensorless homing and it seems like I got it to work with SGTHRS values of 75 and 65 respectively for both X and Y however, after the TAP wire was installed and some of the configs for TAP were done, my X and Y sensorless homing no longer seems to work. What could be the cause of this issue?

Even setting my SGTHRS values of 255 doesn't stop the X from homing, and it should not move at all once it starts if it is at this value

I have attached my Config File for reference

printer.txt

Edited August 30, 2023 by voronstress

cjkennedy72 · November 23, 2023

I have Tap and Sensorless Homig working on my 2.4R2, so I thought I would share my config files to see if you can sort out what is different. I have my configs broken out into seperate files, so there is a sensorless.cfg and printer.cfg involved. The other Includes you see are more related to macros and other settings. See if this is any help... I do not see your sensorless config in the file you posted, as a side note...

printer.cfg:

[include klipper-macros/*.cfg]
[include mainsail.cfg]
[include sensorless.cfg]
[include stealthburner_leds.cfg]

[gcode_macro _km_options]
# Any options variables declared here
gcode:
# These are examples of some likely customizations:
# Any sheets in the below list will be available with a configurable offset.
#variable_bed_surfaces: ['smooth_1','texture_1']
# Length (in mm) of filament to load (bowden tubes will be longer).
#variable_load_length: 90.0
# Hide the Octoprint LCD menu since I don't use it.
variable_menu_show_octoprint: False
# Customize the filament menus (up to 10 entries).
#variable_menu_temperature: [
#  {'name': 'PLA',  'extruder': 200.0, 'bed': 50.0},
#  {'name': 'PETG', 'extruder' : 230.0, 'bed': 85.0},
#  {'name': 'ABS',  'extruder': 245.0, 'bed': 100.0}]
# Length of filament (in millimeters) to purge at print start.
variable_start_purge_length: 30 # This value works for most setups.
# Any code you put here will run at klipper startup, after the initialization
# for these macros. For example, you could uncomment the following line to
# automatically adjust your bed surface offsets to account for any changes made
# to your Z endstop or probe offset.
#  ADJUST_SURFACE_OFFSETS
# X position to park toolhead (set "max" or "min" to infer from stepper config).
variable_park_x: 290.0
# Y position to park toolhead (set "max" or "min" to infer from stepper config).
variable_park_y: 290.0

# Optimized bed leveling
[include klipper-macros/optional/bed_mesh.cfg]

[gcode_macro _CLIENT_VARIABLE]
variable_use_custom_pos   : False ; use custom park coordinates for x,y [True/False]
#variable_custom_park_x    : 0.0   ; custom x position; value must be within your defined min and max of X
#variable_custom_park_y    : 0.0   ; custom y position; value must be within your defined min and max of Y
#variable_custom_park_dz   : 2.0   ; custom dz value; the value in mm to lift the nozzle when move to park position
#variable_retract          : 1.0   ; the value to retract while PAUSE
#variable_cancel_retract   : 5.0   ; the value to retract while CANCEL_PRINT
variable_speed_retract    : 35.0  ; retract speed in mm/s
variable_unretract        : 0   ; the value to unretract while RESUME
variable_speed_unretract  : 35.0  ; unretract speed in mm/s
#variable_speed_hop        : 15.0  ; z move speed in mm/s
#variable_speed_move       : 100.0 ; move speed in mm/s
variable_park_at_cancel   : True ; allow to move the toolhead to park while execute CANCEL_PRINT [True/False]
#variable_park_at_cancel_x : None  ; different park position during CANCEL_PRINT [None/Position as Float]; park_at_cancel must be True
#variable_park_at_cancel_y : None  ; different park position during CANCEL_PRINT [None/Position as Float]; park_at_cancel must be True
## !!! Caution [firmware_retraction] must be defined in the printer.cfg if you set use_fw_retract: True !!!
variable_use_fw_retract   : True ; use fw_retraction instead of the manual version [True/False]
variable_idle_timeout     : 3600    ; time in sec until idle_timeout kicks in. Value 0 means that no value will be set or restored
gcode:


[virtual_sdcard]
path: /home/voron/printer_data/gcodes
on_error_gcode: CANCEL_PRINT

[pause_resume]

[respond]

[exclude_object]

[save_variables]
filename: /home/voron/printer_data/config/variables.cfg

[mcu]
serial: /dev/serial/by-id/usb-Klipper_stm32f446xx_17000D001150535556323420-if00
restart_method: command

[mcu EBB]
canbus_uuid: 2fff61130496

[printer]
kinematics: corexy
max_velocity: 350
max_accel: 6500
max_z_velocity: 15          
max_z_accel: 350
square_corner_velocity: 8.0

#####################################################################
#   X/Y Stepper Settings
#####################################################################

##  B Stepper - Left
##  Connected to MOTOR_0
##  Endstop connected to DIAG_0
[stepper_x]
step_pin: PF13
dir_pin: PF12
enable_pin: !PF14
rotation_distance: 40
microsteps: 32
full_steps_per_rotation:200  #set to 400 for 0.9 degree stepper
endstop_pin: tmc2209_stepper_x:virtual_endstop
position_min: 0
position_max: 300
position_endstop: 300
homing_speed: 100   #Max 100
homing_retract_dist: 0
homing_positive_dir: true

[tmc2209 stepper_x]
uart_pin: PC4
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0
diag_pin: ^PG6      # Set to MCU pin connected to TMC DIAG pin
driver_SGTHRS: 72 # 255 is most sensitive value, 0 is least sensitive

##  A Stepper - Right
##  Connected to MOTOR_1
##  Endstop connected to DIAG_1
[stepper_y]
step_pin: PG0
dir_pin: PG1
enable_pin: !PF15
rotation_distance: 40
microsteps: 32
full_steps_per_rotation:200  #set to 400 for 0.9 degree stepper
endstop_pin: tmc2209_stepper_y:virtual_endstop
position_min: 0
position_endstop: 300
position_max: 300
homing_speed: 100  #Max 100
homing_retract_dist: 0
homing_positive_dir: true

[tmc2209 stepper_y]
uart_pin: PD11
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0
diag_pin: ^PG9      # Set to MCU pin connected to TMC DIAG pin
driver_SGTHRS: 128 # 255 is most sensitive value, 0 is least sensitive


#####################################################################
#   Z Stepper Settings
#####################################################################

## Z0 Stepper - Front Left
##  Connected to MOTOR_2
##  Endstop connected to DIAG_2
[stepper_z]
step_pin: PF11
dir_pin: PG3
enable_pin: !PG5
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32
endstop_pin: probe:z_virtual_endstop
##  Z-position of nozzle (in mm) to z-endstop trigger point relative to print surface (Z0)
##  (+) value = endstop above Z0, (-) value = endstop below
##  Increasing position_endstop brings nozzle closer to the bed
##  After you run Z_ENDSTOP_CALIBRATE, position_endstop will be stored at the very end of your config
# position_endstop: -0.5
position_max: 260
position_min: -10
homing_speed: 5
second_homing_speed: 4
homing_retract_dist: 3

[tmc2209 stepper_z]
uart_pin: PC6
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

##  Z1 Stepper - Rear Left
##  Connected to MOTOR_3
[stepper_z1]
step_pin: PG4
dir_pin: !PC1
enable_pin: !PA0
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32

##  Make sure to update below for your relevant driver (2208 or 2209)
[tmc2209 stepper_z1]
uart_pin: PC7
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

##  Z2 Stepper - Rear Right
##  Connected to MOTOR_4
[stepper_z2]
step_pin: PF9
dir_pin: PF10
enable_pin: !PG2
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32

##  Make sure to update below for your relevant driver (2208 or 2209)
[tmc2209 stepper_z2]
uart_pin: PF2
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

##  Z3 Stepper - Front Right
##  Connected to MOTOR_5
[stepper_z3]
step_pin: PC13
dir_pin: !PF0
enable_pin: !PF1
rotation_distance: 40
gear_ratio: 80:16
microsteps: 32

##  Make sure to update below for your relevant driver (2208 or 2209)
[tmc2209 stepper_z3]
uart_pin: PE4
interpolate: false
run_current: 0.8
sense_resistor: 0.110
stealthchop_threshold: 0

#####################################################################
#   Extruder
#####################################################################

##  Connected to EBB-TMC2209
##  Heater - EBB:HE0
##  Thermistor - EBB:T0

[extruder]
step_pin: EBB: PD0
dir_pin: !EBB: PD1
enable_pin: !EBB: PD2
rotation_distance: 22.6789511
microsteps: 32
gear_ratio: 50:10
full_steps_per_rotation: 200
max_extrude_only_distance: 500
max_extrude_only_velocity: 120
max_extrude_only_accel: 800
pressure_advance: 0.03
pressure_advance_smooth_time: 0.04
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: EBB: PB13
sensor_type: ATC Semitec 104NT-4-R025H42G
sensor_pin: EBB: PA3
#control: pid
#pid_Kp: 21.527
#pid_Ki: 1.063
#pid_Kd: 108.982
min_temp: 0
max_temp: 310

[tmc2209 extruder]
uart_pin: EBB: PA15
interpolate: false
run_current: 0.5
sense_resistor: 0.110
stealthchop_threshold: 0

[firmware_retraction]
retract_length: 2
#   The length of filament (in mm) to retract when G10 is activated,
#   and to unretract when G11 is activated (but see
#   unretract_extra_length below). The default is 0 mm.
retract_speed: 30
#   The speed of retraction, in mm/s. The default is 20 mm/s.
unretract_extra_length: 0
#   The length (in mm) of *additional* filament to add when
#   unretracting.
unretract_speed: 30
#   The speed of unretraction, in mm/s. The default is 10 mm/s.

####################################################################
# Fan Control
####################################################################
[fan]
pin: EBB: PA0

[heater_fan hotend_fan]
pin: EBB: PA1
heater: extruder
heater_temp: 50.0

[heater_fan exhaust_fan]
pin: PD15
heater: heater_bed
heater_temp: 30.0

#####################################################################
#   Bed Heater
#####################################################################

##  SSR Pin - HE1
##  Thermistor - TB
[heater_bed]
heater_pin: PA1
sensor_pin: PF3
sensor_type: Generic 3950
max_power: 0.6
min_temp: 0
max_temp: 120
#control: pid
#pid_kp: 58.437
#pid_ki: 2.347
#pid_kd: 363.769

####################################################################
# Filament Sensors
####################################################################
[filament_switch_sensor switch_sensor]
switch_pin: ^!PG14
pause_on_runout: False
runout_gcode:
  PAUSE
  M117 Filament switch runout
insert_gcode:
  M117 Filament switch inserted

# [filament_motion_sensor encoder_sensor]
# switch_pin: ^PG15
# detection_length: 10
# extruder: extruder
# pause_on_runout: False
# runout_gcode:
#   PAUSE
#   M117 Filament encoder runout
# insert_gcode:
#   M117 Filament encoder inserted

#####################################################################
#   Probe
#####################################################################

## Voron Tap
[probe]
pin: ^EBB:PB9
x_offset: 0
y_offset: 0.0
#z_offset: -0.5
speed: 6
samples: 3
samples_result: median
sample_retract_dist: 2.0
samples_tolerance: 0.006
samples_tolerance_retries: 3

####GCode to safely use Tap

activate_gcode:
    {% set PROBE_TEMP = 150 %}
    {% set MAX_TEMP = PROBE_TEMP + 5 %}
    {% set ACTUAL_TEMP = printer.extruder.temperature %}
    {% set TARGET_TEMP = printer.extruder.target %}

    {% if TARGET_TEMP > PROBE_TEMP %}
        { action_respond_info('Extruder temperature target of %.1fC is too high, lowering to %.1fC' % (TARGET_TEMP, PROBE_TEMP)) }
        M109 S{ PROBE_TEMP }
    {% else %}
        # Temperature target is already low enough, but nozzle may still be too hot.
        {% if ACTUAL_TEMP > MAX_TEMP %}
            { action_respond_info('Extruder temperature %.1fC is still too high, waiting until below %.1fC' % (ACTUAL_TEMP, MAX_TEMP)) }
            TEMPERATURE_WAIT SENSOR=extruder MAXIMUM={ MAX_TEMP }
        {% endif %}
    {% endif %}

#####################################################################
#   Homing and Gantry Adjustment Routines
#####################################################################

[idle_timeout]
gcode:
  _KM_IDLE_TIMEOUT

# [safe_z_home]
##  XY Location of the Z Endstop Switch
##  Update -10,-10 to the XY coordinates of your endstop pin 
##  (such as 157,305) after going through Z Endstop Pin
##  Location Definition step.
# home_xy_position:150,150
# speed:100
# z_hop:10
[homing_override]
axes: xyz
gcode:
  {% set home_all = 'X' not in params and 'Y' not in params and 'Z' not in params %}
    
  {% if home_all or 'X' in params %}
    STATUS_HOMING
    _HOME_X
  {% endif %}
  
  {% if home_all or 'Y' in params %}
    STATUS_HOMING
    _HOME_Y
  {% endif %}
  
  {% if home_all or 'Z' in params %}
    STATUS_HOMING
    G91
    G1 Y-140 F3600
    G1 X-140 F3600
    G28.6245197 Z
    G1 Z10
    STATUS_READY
  {% endif %}



[quad_gantry_level]
gantry_corners:
   -60,-10
   360,370
#  Probe points
points:
   50,25
   50,275
   250,275
   250,25

speed: 200
horizontal_move_z: 3
retries: 6
retry_tolerance: 0.0075
max_adjust: 10

[bed_mesh]
speed: 200
horizontal_move_z: 1
mesh_min: 40, 40
mesh_max: 260,260
fade_start: 0.6
fade_end: 10.0
probe_count: 5,5
mesh_pps: 2,2
algorithm: bicubic

##########################################
# Input Shaping
##########################################
[input_shaper]
#shaper_freq_x: 84.4
#shaper_freq_y: 44.0
#shaper_type_x: 3hump_ei
#shaper_type_y: mzv

[adxl345]
cs_pin: EBB: PB12
spi_software_sclk_pin: EBB: PB10
spi_software_mosi_pin: EBB: PB11
spi_software_miso_pin: EBB: PB2
axes_map: x,y,z

[resonance_tester]
probe_points:
  150,150,30
accel_chip: adxl345
min_freq: 5
max_freq: 133.33
accel_per_hz: 75


########################################
# EXP1 / EXP2 (display) pins
########################################

[board_pins]
aliases:
    # EXP1 header
    EXP1_1=PE8, EXP1_2=PE7,
    EXP1_3=PE9, EXP1_4=PE10,
    EXP1_5=PE12, EXP1_6=PE13,    # Slot in the socket on this side
    EXP1_7=PE14, EXP1_8=PE15,
    EXP1_9=<GND>, EXP1_10=<5V>,

    # EXP2 header
    EXP2_1=PA6, EXP2_2=PA5,
    EXP2_3=PB1, EXP2_4=PA4,
    EXP2_5=PB2, EXP2_6=PA7,      # Slot in the socket on this side
    EXP2_7=PC15, EXP2_8=<RST>,
    EXP2_9=<GND>, EXP2_10=<5V>

###########################################
## NeoPixel SB Head
###########################################
[neopixel sb_leds]
pin: EBB:PD3
#   The pin connected to the neopixel. This parameter must be provided.
chain_count: 3
#   The number of Neopixel chips that are "daisy chained" to the
#   provided pin. The default is 1 (which indicates only a single
#   Neopixel is connected to the pin).
color_order: RGBW
#   Set the pixel order required by the LED hardware. Options are GRB,
#   RGB, GRBW, or RGBW. The default is GRB.
initial_RED: 0.5
initial_GREEN: 0.5
initial_BLUE: 0.5
#   Sets the initial LED color of the Neopixel. Each value should be
#   between 0.0 and 1.0. The WHITE option is only available on RGBW
#   LEDs. The default for each color is 0.#
#####################################################################
#   Macros
#####################################################################
[gcode_macro G32]
gcode:
    SAVE_GCODE_STATE NAME=STATE_G32
    STATUS_CALIBRATING_Z
    G90
    G28.6245197
    QUAD_GANTRY_LEVEL
    G28.6245197
    STATUS_BUSY
    PARK
    RESTORE_GCODE_STATE NAME=STATE_G32
    STATUS_READY

Here is my sensorless.cfg:

[gcode_macro _HOME_X]
gcode:
    # Always use consistent run_current on A/B steppers during sensorless homing
    {% set RUN_CURRENT_X = printer.configfile.settings['tmc2209 stepper_x'].run_current|float %}
    {% set RUN_CURRENT_Y = printer.configfile.settings['tmc2209 stepper_y'].run_current|float %}
    {% set HOME_CURRENT = 0.7 %}
    STATUS_HOMING
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={HOME_CURRENT}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={HOME_CURRENT}
    
    # Home
    G28.6245197 X
    # Move away
    G91
    G1 X-10 F1200
    
    # Wait just a second… (give StallGuard registers time to clear)
    G4 P1000
    # Set current during print
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={RUN_CURRENT_X}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={RUN_CURRENT_Y}

[gcode_macro _HOME_Y]
gcode:
    # Set current for sensorless homing
    {% set RUN_CURRENT_X = printer.configfile.settings['tmc2209 stepper_x'].run_current|float %}
    {% set RUN_CURRENT_Y = printer.configfile.settings['tmc2209 stepper_y'].run_current|float %}
    {% set HOME_CURRENT = 0.7 %}
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={HOME_CURRENT}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={HOME_CURRENT}

    # Home
    STATUS_HOMING
    G28.6245197 Y
    # Move away
    G91
    G1 Y-10 F1200

    # Wait just a second… (give StallGuard registers time to clear)
    G4 P1000
    # Set current during print
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={RUN_CURRENT_X}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={RUN_CURRENT_Y}
    # Home
    G28.6245197 X
    # Move away
    G91
    G1 X-10 F1200
    
    # Wait just a second… (give StallGuard registers time to clear)
    G4 P1000
    # Set current during print
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={RUN_CURRENT_X}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={RUN_CURRENT_Y}

[gcode_macro _HOME_Y]
gcode:
    # Set current for sensorless homing
    {% set RUN_CURRENT_X = printer.configfile.settings['tmc2209 stepper_x'].run_current|float %}
    {% set RUN_CURRENT_Y = printer.configfile.settings['tmc2209 stepper_y'].run_current|float %}
    {% set HOME_CURRENT = 0.7 %}
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={HOME_CURRENT}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={HOME_CURRENT}

    # Home
    STATUS_HOMING
    G28.6245197 Y
    # Move away
    G91
    G1 Y-10 F1200

    # Wait just a second… (give StallGuard registers time to clear)
    G4 P1000
    # Set current during print
    SET_TMC_CURRENT STEPPER=stepper_x CURRENT={RUN_CURRENT_X}
    SET_TMC_CURRENT STEPPER=stepper_y CURRENT={RUN_CURRENT_Y}

I hope you find your problem, Good Luck!

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Sensorless homing (X and Y) no longer works after configuring TAP

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voronstress

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cjkennedy72

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