Filament runout macro improvment

[Tiwatz]

The filament runout macro pauses the print immediately and there is about 50cm of filament that has to be wasted. I searched for some bit and found this: https://klipper.discourse.group/t/feature-request-filament-runout-trigger-pause-after-700mm-extruded-distance-delay/5586

I tweaked it a little bit to fit this mod and added it to my custom_macros.cfg
Remember to delete/comment out the existing _FILAMENT_RUNOUT_EVENT in macros.cfg

[gcode_macro _FILAMENT_RUNOUT_DELAY]
description: Trigger to pause the print after a further 'd' mm has been extruded
variable_end_d: 0 #create variable "END_D" which is associated with the _FILAMENT_RUNOUT_DELAY gcode macro
gcode:
  {% set d_start = printer.print_stats.filament_used|float %} #starting point is whatever the filament used is when _FILAMENT_RUNOUT_DELAY is called
  {% set d_end = (d_start + params.D|float)|float %} #end point is start + D parameter
  SET_GCODE_VARIABLE MACRO=_FILAMENT_RUNOUT_DELAY VARIABLE=end_d VALUE={d_end} #write the end value to the END_D gcode variable to access later
  UPDATE_DELAYED_GCODE ID=_FILAMENT_RUNOUT_EVENT DURATION=1 #trigger the delayed gcode below after 1 second

[delayed_gcode _FILAMENT_RUNOUT_EVENT]
initial_duration: 0 #if initial_duration is zero, the delayed gcode won't start by default
gcode:
  {% set d_current = printer.print_stats.filament_used|float %} #get the current filament used
  {% if d_current < printer["gcode_macro _FILAMENT_RUNOUT_DELAY"].end_d %} #if we aren't at the stopping point
UPDATE_DELAYED_GCODE ID=_FILAMENT_RUNOUT_EVENT DURATION=1 #restart the timer on the delayed gcode
  {% else %}
    PAUSE X=0 Y=0 Z_MIN=50
    UPDATE_DELAYED_GCODE ID=_FILAMENT_RUNOUT_EVENT DURATION=0 #set the delayed gcode duration back to zero so it doesn't keep triggering
    RESPOND TYPE=command MSG="action:prompt_begin Filament runout detected"
    RESPOND TYPE=command MSG="action:prompt_text The filament sensor has detected filament runout. Please load filament and press resume."
    RESPOND TYPE=command MSG="action:prompt_button_group_start"
    RESPOND TYPE=command MSG="action:prompt_button Load|LOAD_FILAMENT|primary"
    RESPOND TYPE=command MSG="action:prompt_button Unload|UNLOAD_FILAMENT|primary"
    RESPOND TYPE=command MSG="action:prompt_button Purge|PURGE_FILAMENT|primary"
    RESPOND TYPE=command MSG="action:prompt_button_group_end"
    RESPOND TYPE=command MSG="action:prompt_footer_button Resume|_INTERACTIVE_LOAD_END"
    RESPOND TYPE=command MSG="action:prompt_show"
  {% endif %}
  
[filament_switch_sensor runout_sensor]
runout_gcode:
	_FILAMENT_RUNOUT_DELAY D=470

A value of 470 works fine for me, maybe you need to tweak the D value on your printer.