## Problem
On H2C (carousel) printers, the wipe tower purge volume calculation in
`_make_wipe_tower()` tracks filament state **per-extruder** (2 slots).
Since H2C has up to 7 carousel nozzle slots on a single extruder, all
filaments sharing that extruder are collapsed into one tracking slot.
This causes:
Test:
[5cubes.3mf.zip](https://github.com/user-attachments/files/30092551/5cubes.3mf.zip)
- **Massive redundant AMS flushing** every filament change on the
carousel triggers a full purge against the "previous" filament, even
when the target nozzle slot already has the correct filament loaded
- **60.9g total weight** instead of ~17g (**3.5× material waste**)
- **3h09m print time** instead of ~1h57m (**60% longer**)
## Root Cause
The code uses `nozzle_cur_filament_ids[extruder_id]` (a 2-element array)
to track which filament was last used for each extruder. BambuStudio
uses `NozzleStatusRecorder`, which tracks per `group_id` (physical
carousel slot 0..6).
## Changes
| File | Change |
|---|---|
| `Print.cpp` | Replace `nozzle_cur_filament_ids` with
`NozzleStatusRecorder`. Use `get_nozzle_for_filament()` to resolve the
physical carousel slot per layer. Select `filament_prime_volume_nc` for
nozzle changes, `filament_prime_volume` for filament changes. |
| `PrintConfig.hpp` | Add `ConfigOptionFloats filament_prime_volume`
(per-filament EC prime volume, missing from upstream but present in BBS
and H2C profiles) |
| `PrintConfig.cpp` | Register `filament_prime_volume` with default
45mm³ (matching BBS) |
| `Preset.cpp` | Add `filament_prime_volume` to preset keys |
Also includes `tests/compare_analyzer/` - two standalone Python tools
for G-code slice comparison and temperature timeline analysis (stdlib
only, no dependencies).
## Test Results (5-color H2C Hybrid print, same 3mf project)
| Metric | Upstream (broken) | **Fixed** | BBS (reference) |
|---|---|---|---|
| **Total weight** | 60.90g | **16.20g** ✅ | 17.47g |
| **Print time** | 3h09m | **1h57m** ✅ | 1h51m |
| **Filament changes** | 105 | 105 | 140 |
| **Tool changes** | 35 | 35 | 35 |
| **Critical discrepancies vs BBS** | ⚠️ YES | ✅ None | — |
## Analysis Tools (`tests/compare_analyzer/`)
Two standalone Python tools (stdlib only, no dependencies) for deep
G-code comparison:
- **`compare_slices.py`** - comprehensive .3mf slice comparison:
filament usage, nozzle mapping, tool change sequences, prime tower
analysis, temperature timeline, retract parameters, and automatic
critical discrepancy detection (weight/time anomalies)
- **`show_temp_plot.py`** - interactive HTML temperature timeline
plotter for visualising heater profiles during multi-nozzle prints
(supports single-file and side-by-side comparison)
Usage:
```bash
python3 tests/compare_analyzer/compare_slices.py file1.3mf file2.3mf --labels "Upstream" "Fixed"
python3 tests/compare_analyzer/show_temp_plot.py file1.3mf file2.3mf
```
## Screenshots
### OrcaSlicer Upstream (unfixed) - 60.90g, 3h09m
<img width="1512" height="982" alt="Screenshot 2026-07-16 at 15 22 58"
src="https://github.com/user-attachments/assets/3efb2bff-ff1e-43db-9669-feafa5921b51"
/>
### OrcaSlicer Fixed - 16.20g, 1h57m
<img width="1512" height="982" alt="Screenshot 2026-07-16 at 15 23 08"
src="https://github.com/user-attachments/assets/c1d36dc5-9b01-4691-80ef-7364540e1f4e"
/>
### BambuStudio Reference - 17.47g, 1h51m
<img width="1512" height="982" alt="Screenshot 2026-07-16 at 15 24 52"
src="https://github.com/user-attachments/assets/5c0b11e2-64f4-40e9-8c7c-3f42519786c3"
/>
### Temperature Timeline: Upstream vs Fixed
<img width="1511" height="829" alt="Screenshot 2026-07-16 at 15 23 35"
src="https://github.com/user-attachments/assets/926c2cb5-dfd4-4ce0-bb40-82e6165eb134"
/>
### Temperature Timeline: Fixed vs BBS
<img width="1512" height="825" alt="Screenshot 2026-07-16 at 15 23 51"
src="https://github.com/user-attachments/assets/85c72dda-e779-4aa6-8118-fb17e5f8482d"
/>
## Compatibility
Safe for non-carousel printers: when each extruder has a single nozzle,
`group_id == extruder_id`, so `NozzleStatusRecorder` behaves identically
to the original per-extruder tracking. The `filament_prime_volume`
default (45mm³) matches the existing global `prime_volume` default.
## Reference
BambuStudio `Print.cpp` `_make_wipe_tower()` L3341-3392 -
`NozzleStatusRecorder` pattern.
* Ensure spiral lift positive quadrant
* check for printable area
* clamp area
* simpler version
* Adjust printable area bounds with safety safety margin
Added safety margin to printable area bounds calculations.
* increase safety margin
* Refactor safety margin calculations in GCodeWriter
* New Logic
Co-Authored-By: Ian Bassi <12130714+ianalexis@users.noreply.github.com>
---------
Co-authored-by: Ian Bassi <12130714+ianalexis@users.noreply.github.com>
# Description
Typo introduced a regression failure. Fixes failing tests.
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[How to Download Pull Requests Artifacts for
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* fix: constrain PA_Line calibration bounding box to model geometry
- PA_Line bounding box now uses actual model convex hull for X constraint instead of full printable area
- Skip EXCLUDE_OBJECT_DEFINE for PA_Line mode (single object, no exclusion needed)
- Add tool config files to .gitignore
* modified: .gitignore
* fix: add gcode type annotations and fix box height in PA line calibration
- Label calibration segments with appropriate TYPE comments (Outer wall, Bottom surface, Top surface, Custom) for proper gcode processing
- Fix bounding box height calculation to account for z_offset
- Add LAYER_CHANGE and HEIGHT comments for multi-layer numbering display
* fix: lock PA_Line bounding box X to bed centre instead of model hull
* Added extra TYPE to ensure text/numbers/glyphs are labelled correctly
` gcode << ";TYPE:Outer wall\n"; `
* Remove hardcoded Perl path in OpenSSL.cmake
Remove hardcoded Perl path for Windows configuration.
* Add cross compilation support for Windows in OpenSSL.cmake
* Remove unnecessary blank line in OpenSSL.cmake
* Set perl config command back to variable
Accidentally uploaded version with hardcoded path for my local environment
* whitespace adjustment in previous
* removed personal .gitignore config
Remove specific files and directories from .gitignore.
* Fix box height parameter in DrawBoxOptArgs
Update DrawBoxOptArgs to use `m_height_layer` instead of `m_height_layer*2+z_offset`. This isn't a Z coordinate, it's a layer height
* Replace hardcoded extrusion type with call to `GCodeProcessor::reserved_tag` Etags
* Get pa_line bounding box from actual calibration variables
Updated calibration line bounding box calculation to use actual geometry for X bounds, using a fake call to generate the calibration pattern.
This will accurately get the size of the calibration pattern, massively reducing wasted time from bed mesh probing.
* Implement print_extents method in CalibPressureAdvanceLine
Add print_extents method to calculate bounding box extents based on bed dimensions.
* Declare print_extents method in CalibPressureAdvanceLine
Added print_extents method to return X-bounds of the pattern.
* Fixed whitespace issues
* Adjust print_extents to account for delta printers
Check if the printer is delta layout and adjust bed dimensions if so.
Used code from `CalibPressureAdvanceLine::generate_test`
* Added semicolons to reserved tags
Didn't realise etags wouldn't add semicolon - added these
* only include number list in bounding box if number list is used
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
* avoid bounding box overflowing bed
* Tabs to spaces
---------
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Ian Bassi <ian.bassi@outlook.com>
- WipeTower: use filament_ramming_volumetric_speed(_nc) for ramming, falling back to
max_vol_speed only when nil; gate precool temps on enable_pre_heating
- ToolOrderUtils: disable the inter-layer forecast in the per-nozzle base reorder so
H2D/H2C ordering is unchanged
- PrintConfig: stop stripping filament_prime_volume in handle_legacy; document that
prime_volume drives the Type2 wipe tower and filament_prime_volume the Type1 one
- GCodeProcessor: exclude post-print end-gcode M400 dwells from the M73 estimate and
drop the dead air-filtration state
- Trim verbose BambuStudio source-location comments across the port
# Description
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> Please attach images that can help explain the changes.
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## Tests
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load_local_machines_from_config() iterated a reference to the live
m_local_machines map while erase_local_machine() erased from it for
printers without access rights, invalidating the range-for iterator
(use-after-free on ++it). Iterate a copy instead, as the code did
before commit 5028a5000e.
* Call proper EXT variant of the function if framebuffer type is EXT
* Update glad with `GL_EXT_framebuffer_blit` and `GL_EXT_framebuffer_multisample` extensions support
Xcode's CodeSign phase rejects the bundled Python runtime's dotted dirs under Contents/MacOS. Disable it for the Xcode generator so the linker ad-hoc signs local dev builds; CI (Ninja) and the notarized bundle are unaffected.
Give previously-bare panels a keyed background so the existing dark-UI walk
can theme them. Runtime-created widgets (HMS items, device firmware/nozzle
panels) route their whole subtree through one UpdateDarkUIWin(this) call
instead of per-widget darkModeColorFor, which also themes their child text
and follows live light/dark switches. Extruder-card chips re-apply their
colours from Sidebar::sys_color_changed so a live switch updates them too.
# Description
Support the 02.08.01 network plug-in and resync the Bambu device
workflow
Brings the Bambu network plug-in up to the 02.08.01 series and reworks
the plug-in
lifecycle around it (ABI gating, OTA install, hot reload), then catches
the device and
monitor side up to what that plug-in and current firmware expose — AMS
mapping, send-flow
checks, print options, and the device status pages.
**Included:**
_Network plug-in_
- Default to the 02.08.01 series and bind its new ABI symbols; bump the
reported
`SLIC3R_VERSION` to 02.08.01.55
- Gate loading to ABI-compatible `AA.BB.CC` series, and store plug-in
identity by series
rather than by exact build
- Fix the OTA update flow: install immediately, hot-reload without a
restart, and destroy
the agent before unloading the DLL
- Version selector lists same-series OTA builds newest first, with
dynamic
"(Latest)" / "(installed)" labels
- Restart printer discovery and reload saved LAN printers after a hot
reload
_Device layer_
- Move axis, calibration, chamber, status and upgrade handling into
DeviceCore; drop the
transitional shims
- Resync the DeviceCore state models, accessory firmware versions,
cold-pull state and
filament checks
_Device UI_
- Resync the AMS control/item widgets, device dialogs, device tab
widgets and status pages
- Add the AMS best-position popup, filament-change stop button, hub
version row and HMS
fallback
- Device error dialog: print-failure snapshot, purification and
don't-remind actions
_Send flow_
- Resync the send flow and port the remaining pre-send checks and
advisories
- Warn when a filament will switch extruders mid-print; block TPU on the
l
without firmware support (O1D/O1E)
- Map switch-bound AMS trays to both extruders and show combined nozzle
mapping
- Add the shared-PA-profile toggle
_Print options / timelapse_
- Restructure DevPrintOptions around a detection-option map and parse
the
bits on the live push path
- Add firmware print-option toggles, plus timelapse storage-location
selection with a
free-space check
_Fixes_
- Inverted MQTT jog on i3-architecture printers, plus assorted popup,
mapping and
status-parse defects
_Tests_
- New Catch2 coverage for network version selection and device filament
mapping
Printers that don't advertise the new capabilities are unaffected —
every added behavior is
gated on a firmware or plug-in capability flag, and the only profile
chang
`support_print_check_firmware_for_tpu_left` to O1D/O1E.
# Screenshots/Recordings/Graphs
<img width="714" height="500" alt="image"
src="https://github.com/user-attachments/assets/33e54581-3fb0-4a3e-b80c-afa8adfabe4c"
/>
<img width="530" height="212" alt="image"
src="https://github.com/user-attachments/assets/d0c55fd5-74c3-4aab-81a5-786d0aaf8828"
/>
<img width="483" height="527" alt="image"
src="https://github.com/user-attachments/assets/71ceaad1-a082-41cb-aa1a-4b9abb30d9db"
/>
## Tests
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Export wxWidgets include dirs and defines from libslic3r_gui on Linux so
tests outside src/ compile against its GUI headers. Relocate the bundled
Python runtime to Contents/Resources with a Contents/MacOS/python symlink
(codesign cannot seal the dotted python3.12 dirs under Contents/MacOS) and
replace the deprecated codesign --deep with explicit inside-out signing of
every Mach-O in the bundle.
