Kind of same for me. Ender 3 Pro with 4.2.7 board. After a few layer it starts the filament run-out procedure. After continue the print it starts the same a few layers after.

 * Filament Runout Sensors
 * Mechanical or opto endstops are used to check for the presence of filament.
 *
 * RAMPS-based boards use SERVO3_PIN for the first runout sensor.
 * For other boards you may need to define FIL_RUNOUT_PIN, FIL_RUNOUT2_PIN, etc.
 */
#define FILAMENT_RUNOUT_SENSOR
#if ENABLED(FILAMENT_RUNOUT_SENSOR)
  #define FIL_RUNOUT_ENABLED_DEFAULT true // Enable the sensor on startup. Override with M412 followed by M500.
  #define NUM_RUNOUT_SENSORS   1          // Number of sensors, up to one per extruder. Define a FIL_RUNOUT#_PIN for each.
  #define FIL_RUNOUT_STATE     LOW        // Pin state indicating that filament is NOT present.
  #define FIL_RUNOUT_PULLUP               // Use internal pullup for filament runout pins.
  //#define FIL_RUNOUT_PULLDOWN           // Use internal pulldown for filament runout pins.

  // Set one or more commands to execute on filament runout.
  // (After 'M412 H' Marlin will ask the host to handle the process.)
  #define FILAMENT_RUNOUT_SCRIPT "M600"

  // After a runout is detected, continue printing this length of filament
  // before executing the runout script. Useful for a sensor at the end of
  // a feed tube. Requires 4 bytes SRAM per sensor, plus 4 bytes overhead.
  #define FILAMENT_RUNOUT_DISTANCE_MM 7

  #ifdef FILAMENT_RUNOUT_DISTANCE_MM
    // Enable this option to use an encoder disc that toggles the runout pin
    // as the filament moves. (Be sure to set FILAMENT_RUNOUT_DISTANCE_MM
    // large enough to avoid false positives.)
    #define FILAMENT_MOTION_SENSOR
  #endif
#endif```

from smart-filament-detection-module.

I have the same problem.

from smart-filament-detection-module.

I'm having the same behavior with the 4.2.2 board.

Currently using the following firmware to help rule out error in my build config.

https://marlin.crc.id.au/firmware/Ender%203%20-%20v4.2.2%20Board%20-%20BLTouch/

I'm observing sensor state changes using M119 when manually feeding filament through the sensor so physical layer should be good. It's configured for 7mm as verified from the console. Same results from SD or OctoPrint and no issues if filament sensor is disabled with Gcode.

from smart-filament-detection-module.

Setting M412 D10 got me up and running. The 7, 8 and 9 would false trigger pretty consistently but so far working without issue with 10mm (D10)

from smart-filament-detection-module.

lstepnio commented 12 days ago
Setting M412 D10 got me up and running. As lstepnio says would false trigger pretty consistently but so far working without issue with M412 D10 = 10mm (D10)

So I will add M412 D10 to my Start G Code

https://marlinfw.org/docs/gcode/M412.html

Here are some video details of the Issue I have before using the M412 D10 in my Start G Code:-

https://youtu.be/AN19jHV3Mrk

from smart-filament-detection-module.

I am having the same issue however I am running Klipper. Here is my configuration maybe someone can tell me what is causing the conflict.

`# This file contains pin mappings for the Creality "v4.2.7" board. To

This file contains pin mappings for the Creality "v4.2.7" board. To

use this config, during "make menuconfig" select the STM32F103 with

a "28KiB bootloader" and serial (on USART1 PA10/PA9) communication.

If you prefer a direct serial connection, in "make menuconfig"

select "Enable extra low-level configuration options" and select

serial (on USART3 PB11/PB10), which is broken out on the 10 pin IDC

cable used for the LCD module as follows:

3: Tx, 4: Rx, 9: GND, 10: VCC

Flash this firmware by copying "out/klipper.bin" to a SD card and

turning on the printer with the card inserted. The firmware

filename must end in ".bin" and must not match the last filename

that was flashed.

See docs/Config_Reference.md for a description of parameters.

[include menu.cfg] # custom lcd display menu

[stepper_x]
step_pin: PB9
dir_pin: PC2
enable_pin: !PC3
microsteps: 16
rotation_distance: 40
endstop_pin: ^PA5
position_endstop: 0
position_min: 0
position_max: 235
homing_speed: 50

[stepper_y]
step_pin: PB7
dir_pin: PB8
enable_pin: !PC3
microsteps: 16
rotation_distance: 40
endstop_pin: ^PA6
position_endstop: -12
position_min: -12
position_max: 235
homing_speed: 50

[stepper_z]
step_pin: PB5
dir_pin: !PB6
enable_pin: !PC3
microsteps: 16
rotation_distance: 8
endstop_pin: probe:z_virtual_endstop
#position_endstop: 0.0
position_min: -4
position_max: 250

[extruder]
max_extrude_only_distance: 700.0
step_pin: PB3
dir_pin: PB4
enable_pin: !PC3
microsteps: 16
rotation_distance: 33.500
nozzle_diameter: 0.400
filament_diameter: 1.750
max_extrude_only_distance: 100
heater_pin: PA1
sensor_type: ATC Semitec 104GT-2
sensor_pin: PC5
control: pid
pid_Kp: 21.527
pid_Ki: 1.063
pid_Kd: 108.982
min_temp: 0
max_temp: 300
pressure_advance: 0.01
pressure_advance_smooth_time: 0.040

[heater_bed]
heater_pin: PA2
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PC4
control: pid
pid_Kp: 54.027
pid_Ki: 0.770
pid_Kd: 948.182
min_temp: 0
max_temp: 130

[fan]
pin: PA0

[mcu]
serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0
restart_method: command

[printer]
kinematics: cartesian
max_velocity: 300
max_accel: 3000
max_accel_to_decel: 3000
square_corner_velocity: 5.0
max_z_velocity: 5
max_z_accel: 100

#[firmware_retraction]
#retract_length: 1
#retract_speed: 25
#unretract_extra_length: 0
#unretract_speed: 25

[board_pins]
aliases:
EXP1_1=PC6,EXP1_3=PB10,EXP1_5=PB14,EXP1_7=PB12,EXP1_9=,
EXP1_2=PB2,EXP1_4=PB11,EXP1_6=PB13,EXP1_8=PB15,EXP1_10=<5V>,
PROBE_IN=PB0,PROBE_OUT=PB1,FIL_RUNOUT=PC6

[display]
lcd_type: st7920
cs_pin: PB12
sclk_pin: PB13
sid_pin: PB15
encoder_pins: ^PB14, ^PB10
click_pin: ^!PB2

[bltouch]
sensor_pin: ^PB1
#z_offset: 0
control_pin: PB0
pin_up_touch_mode_reports_triggered: False
probe_with_touch_mode: True
x_offset: -44
y_offset: -5
pin_move_time: 0.4

[safe_z_home]
home_xy_position: 155,120 # Nozzle coordinates
speed: 250
z_hop: 10
z_hop_speed: 10

[bed_mesh]
speed: 80

The speed (in mm/s) of non-probing moves during the calibration.

The default is 50.

#horizontal_move_z: 5

The height (in mm) that the head should be commanded to move to

just prior to starting a probe operation. The default is 5.

mesh_min: 15, 15

Defines the minimum X, Y coordinate of the mesh for rectangular

beds. This coordinate is relative to the probe's location. This

will be the first point probed, nearest to the origin. This

parameter must be provided for rectangular beds.

mesh_max: 175, 210

Defines the maximum X, Y coordinate of the mesh for rectangular

beds. Adheres to the same principle as mesh_min, however this will

be the furthest point probed from the bed's origin. This parameter

must be provided for rectangular beds.

probe_count: 3, 3

For rectangular beds, this is a comma separate pair of integer

values X, Y defining the number of points to probe along each

axis. A single value is also valid, in which case that value will

be applied to both axes. Default is 3, 3.

#fade_start: 1.0

The gcode z position in which to start phasing out z-adjustment

when fade is enabled. Default is 1.0.

#mesh_pps: 2, 2

A comma separated pair of integers X, Y defining the number of

points per segment to interpolate in the mesh along each axis. A

"segment" can be defined as the space between each probed point.

The user may enter a single value which will be applied to both

axes. Default is 2, 2.

[screws_tilt_adjust]
screw1: 71,35 # Probe coordinates
screw1_name: front left screw
screw2: 230,35
screw2_name: front right screw
screw3: 230,200
screw3_name: rear right screw
screw4: 71,200
screw4_name: rear left screw
horizontal_move_z: 5.
speed: 250.
screw_thread: CCW-M4

[virtual_sdcard]
path: ~/.octoprint/uploads/

[display_status]

[pause_resume]

[input_shaper]
shaper_freq_x: 77.8
shaper_type_x: 3hump_ei
shaper_freq_y: 33.6
shaper_type_y: mzv

#[mcu rpi]
#serial: /tmp/klipper_host_mcu

#[adxl345]
#cs_pin: rpi:None

#[resonance_tester]
#accel_chip: adxl345
#probe_points:

115,115,20

[include macros.cfg]

[include mainsail.cfg]

[gcode_macro G29]
gcode:
BED_MESH_CALIBRATE
BED_MESH_OUTPUT ; report the bed leveling mesh points.
G1 X2 Y10 Z5 F4000
[gcode_macro CANCEL_PRINT]
rename_existing: BASE_CANCEL_PRINT
gcode:
TURN_OFF_HEATERS
CLEAR_PAUSE
SDCARD_RESET_FILE
BASE_CANCEL_PRINT

######################################################################

runout sensor

######################################################################
[filament_motion_sensor filament_sensor]
detection_length: 7.0

The minimum length of filament pulled through the sensor to trigger

a state change on the switch_pin

Default is 7 mm.

extruder: extruder

The name of the extruder section this sensor is associated with.

This parameter must be provided.

switch_pin: PA4
#pause_on_runout:
runout_gcode: FILAMENT_RUNOUT
#insert_gcode:
#event_delay:
#pause_delay:

See the "filament_switch_sensor" section for a description of the

above parameters.

[gcode_macro FILAMENT_RUNOUT]
gcode:
M300 S1 P10
M600
M300 S1 P10

[gcode_macro M600]
gcode:
{% set X = params.X|default(25)|float %}
{% set Y = params.Y|default(25)|float %}
{% set Z = params.Z|default(10)|float %}
SAVE_GCODE_STATE NAME=M600_state
PAUSE
G91
G1 E-.8 F2700
G1 Z{Z}
G90
G1 X{X} Y{Y} F3000
G91
G1 E-15 F1000
RESTORE_GCODE_STATE NAME=M600_state

######################################################################

Beeper

######################################################################

M300 : Play tone. Beeper support, as commonly found on usual LCD

displays (i.e. RepRapDiscount 2004 Smart Controller, RepRapDiscount

12864 Full Graphic). This defines a custom I/O pin and a custom

GCODE macro. Usage:

M300 [P] [S]

P is the tone duration, S the tone frequency.

The frequency won't be pitch perfect.

[output_pin BEEPER_pin]
pin: PC6

Beeper pin. This parameter must be provided.

ar37 is the default RAMPS/MKS pin.

pwm: True

A piezo beeper needs a PWM signal, a DC buzzer doesn't.

value: 0

Silent at power on, set to 1 if active low.

shutdown_value: 0

Disable at emergency shutdown (no PWM would be available anyway).

cycle_time: 0.001

Default PWM frequency : 0.001 = 1ms will give a tone of 1kHz

Although not pitch perfect.

[gcode_macro M300]
gcode:
# Use a default 1kHz tone if S is omitted.
{% set S = params.S|default(1000)|int %}
# Use a 10ms duration is P is omitted.
{% set P = params.P|default(100)|int %}
SET_PIN PIN=BEEPER_pin VALUE=0.5 CYCLE_TIME={ 1.0/S if S > 0 else 1 }
G4 P{P}
SET_PIN PIN=BEEPER_pin VALUE=0

## <---------------------- SAVE_CONFIG ---------------------->
## DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.
##
## [bltouch]
## z_offset = 0.370
##
## [bed_mesh default]
## version = 1
## points =
## -0.665000, -0.475000, -0.212500
## -0.172500, -0.052500, 0.065000
## 0.420000, 0.480000, 0.535000
## tension = 0.2
## min_x = 15.0
## algo = lagrange
## y_count = 3
## mesh_y_pps = 2
## min_y = 15.0
## x_count = 3
## max_y = 210.0
## mesh_x_pps = 2
## max_x = 175.0`

from smart-filament-detection-module.

For now I set the runout to 100mm

from smart-filament-detection-module.