M73 with layer progress

BEGIN_LAYER.cfg

[gcode_macro BEGIN_LAYER]
description: Start a new layer and notify system
gcode:

  #Get layer details from Slicer GCode
  {% set CUR_LAYER = params.NUM|default(0)|float + 1 %}
  {% set NUM_LAYERS = params.COUNT|default(0)|float %}
  {% set LAYER_Z = params.ZLAY|default(0)|float %}

  SET_GCODE_VARIABLE MACRO=PREP_PRINT VARIABLE=cur_layer VALUE={CUR_LAYER}
  SET_GCODE_VARIABLE MACRO=PREP_PRINT VARIABLE=num_layers VALUE={NUM_LAYERS}
  SET_GCODE_VARIABLE MACRO=PREP_PRINT VARIABLE=layer_z VALUE={LAYER_Z}

M73.cfg

[gcode_macro M73]
rename_existing: M73.1
gcode:
  {% set NUM_LAYERS = printer["gcode_macro PREP_PRINT"].num_layers %}
  {% set CUR_LAYER = printer["gcode_macro PREP_PRINT"].cur_layer %}

  M117 { "%02d:%02d" % (params.R|int // 60, (params.R|int) % 60) } remaining  Layer {CUR_LAYER|int} of {NUM_LAYERS|int}

SuperSlicer After_Layer_Change

BEGIN_LAYER NUM={layer_num} COUNT={total_layer_count} ZLAY={layer_z}; Increment layer in Klipper

This Klipper macro package tracks layer progress, stores the current layer to a variable, and responds to M73 commands by using M117 to display the print's remaining time and current of total layers.

For this macro package to function properly:

SuperSlicer must be configured to display print progress using M73.

My PREP_PRINT Klipper macros must also be installed.

Prints with manual filament swaps will cause this macro to output blank M117 commands due to them changing the M73 parameters.

I am working on a solution to include "Remaining Time to Filament Swap" in the status messages in those cases.