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fix: port BBS NozzleStatusRecorder pattern for per-carousel-slot purge tracking

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The upstream _make_wipe_tower() tracked purge volumes per-extruder (2 slots),
which collapsed all H2C carousel filaments into one slot and caused massive
redundant AMS flushing (~40g instead of ~0.4g).

Changes:
- Print.cpp: Replace per-extruder nozzle_cur_filament_ids with BBS
  NozzleStatusRecorder that tracks per group_id (carousel slot 0..6).
  Use get_nozzle_for_filament() to resolve physical slot per layer.
  Select filament_prime_volume_nc for nozzle changes, filament_prime_volume
  for filament changes (BBS pattern).
- PrintConfig.hpp/cpp: Register filament_prime_volume (per-filament EC prime
  volume, default 45mm³) matching BBS PrintConfig.
- Preset.cpp: Add filament_prime_volume to preset keys list.

Safe for non-carousel printers: group_id == extruder_id when each extruder
has one nozzle, so NozzleStatusRecorder behaves identically to the original
per-extruder tracking.

Reference to BBS: BambuStudio/src/libslic3r/Print.cpp _make_wipe_tower() L3341-3392
This commit is contained in:
denis svinarchuk
2026-07-16 14:54:46 +01:00
parent 5e7ad1ad70
commit 407c78fb30
5 changed files with 87 additions and 19 deletions
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2
src/libslic3r/Preset.cpp
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@@ -1372,7 +1372,7 @@ static std::vector<std::string> s_Preset_filament_options {/*"filament_colour",
"filament_ramming_travel_time", "filament_ramming_travel_time_nc",
"filament_pre_cooling_temperature", "filament_pre_cooling_temperature_nc",
"filament_preheat_temperature_delta", "filament_retract_length_nc",
"filament_change_length_nc", "filament_prime_volume_nc",
"filament_change_length_nc", "filament_prime_volume", "filament_prime_volume_nc",
"long_retractions_when_ec", "retraction_distances_when_ec",
//ams chamber
"filament_dev_ams_drying_ams_limitations", "filament_dev_ams_drying_temperature", "filament_dev_ams_drying_time", "filament_dev_ams_drying_heat_distortion_temperature",