Fix fan speed staying high
When fan speed-up time is enabled, layers can inherit a higher fan speed than intended.
If a layer ended with a role-driven fan change, the last applied fan speed
was not properly tracked. As a result, the next layer could start with an
incorrect fan state and keep the higher speed until another fan command
overrode it.
Ensure the emitted fan speed is always tracked correctly, including when
flushing buffered commands at the end of a layer.
* Fix: Enable instance collision detection in GCode and Print clearance
Squashed commit containing:
- Fix gcode path conflict detection in ConflictChecker.cpp by iterating all instances.
- Improve clearance validation in Print.cpp by calculating convex hulls per instance (fixes scaling/mirroring issues).
- Added // Orca: comments to mark changes.
* Fix Wipe Tower G-code conflict detection for WipeTower2
* Fix: Improve object/instance selection for collision and validation warnings
- Updated validation logic in Print.cpp to report specific ModelInstance instead of ModelObject for collision/clearance warnings.
- Updated NotificationManager and Plater to handle ModelInstance selection in 'Jump to' links.
- Added fallback to object selection if specific instance cannot be selected.
- Included fixes for G-code conflict detection (ConflictChecker, GLCanvas3D) to also report instances.
- Improved GUI_ObjectList to update canvas selection when items are selected via API.
* Fix: Prevent crash when loading .3mf projects
Moved update_selections_on_canvas() out of ObjectList::select_items() to avoid premature UI updates during loading. Canvas updates are now explicitly called in NotificationManager and Plater callbacks where needed.
* Fix: Address code review comments
- Fix memory allocation for extrusion layers deep copy
- Remove unused variable in GLCanvas3D
- Fix string formatting crash risk in NotificationManager
- Remove dead code in Plater
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Co-authored-by: SoftFever <softfeverever@gmail.com>
* Elefant foot compensation for solid layers
Elefant foot compensation for solid layers above bottommost by infill density manipulation.
* Update Fill.cpp
* change the option to expert cat
* use is_approx for float
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Co-authored-by: SoftFever <softfeverever@gmail.com>
* Add extrusion role change G-code options
Introduces new G-code options for handling extrusion role changes at the process and filament levels. Updates configuration, GUI, and GCode logic to support 'process_change_extrusion_role_gcode' and 'filament_change_extrusion_role_gcode', allowing custom G-code insertion when the extrusion role changes.
Co-Authored-By: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
* Optimize extrusion role-change gcode handling
Cache gcode template strings and current filament id, and guard creation of DynamicConfig/placeholder processing behind a check that at least one role-change gcode is non-empty. This avoids redundant config lookups and DynamicConfig/placeholder parsing when no custom role-change gcode is defined, improving clarity and performance without changing behavior.
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Co-authored-by: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
* Using bbs versioning for bbs atributes
* Orca tags
* Bump SLIC3R version to match current BBS
* New import logic
* to_string_sf
* 2.3.2 No tagged
* Update comment
In some rare support edge cases, Orca could start extruding a new layer before moving to the correct Z height.
This happened when two support layers were generated back-to-back and the next layer started exactly where the previous one ended. In that situation, there was no movement that naturally updated the Z position first.
The code was clearing the “pending layer change” flag too early, so it lost track of the fact that a Z move was still required.
This change ensures that if a layer change is still pending, Orca will always move to the correct Z height before the first extrusion of that layer.
This guarantees that every layer starts at the correct height and fixes the missing / incorrect support layers seen in those edge cases.
Fix support preview artifacts caused by incorrect gap subdivision
Support generation could sometimes split a gap into too many steps,
even when it should fit exactly into a single layer.
This was most noticeable when max_suport_layer_height was equal to
the print layer height (e.g. 0.2 mm).
This resulted in incorrect support layering and visible artifacts
in preview.
The issue was caused by floating-point precision, where values that
should be equal to the configured limit were treated as slightly larger.
Fix by biasing the subdivision calculation with EPSILON so near-equal
values are not split into extra steps.
Applied consistently to:
- SupportMaterial (normal supports)
- TreeSupportCommon (tree stepping)
- TreeSupport (layer creation)
Adjust initial- and slowdown-layer speed logic to correctly account for raft layers. Replace the previous layer checks with object_layer_over_raft(), simplify initial-layer speed selection, and split the slow_down_layers interpolation into separate branches for configurations with and without rafts so the lerp uses the correct layer offset. Also avoid applying overhang speed adjustments to object layers that are over rafts.
# Description
This commit adds the enhancement of https://github.com/OrcaSlicer/OrcaSlicer/issues/13116
- Adds checkboxes to enable or disable the fan speed override during print or after printing is completed. This allows users to, for example, only override the fan speed during printing whilst leaving the fan speed as is set in the machine gcode at the end.
- Two new flags are added for this: `activate_air_filtration_during_print[extruder]` and `activate_air_filtration_on_completion[extruder]`. These can be used to more finely control machine gcode
- Current filament settings remain as they are: `activate_air_filtration[extruder]` settings are unaffected and by default both new flags are set to true, ensuring the same set behavior as before.
# Screenshots/Recordings/Graphs
<img width="856" height="208" alt="Screenshot From 2026-04-09 18-57-14" src="https://github.com/user-attachments/assets/e71e7de3-2def-4046-b5dc-55bf3b516ce5" />
As you can see there are now checkboxes left of the fan speeds. They have their own tooltip too, which also helps identify the correct flags for users who want to adjust their machine gcode.
## Tests
I have thoroughly tested this on my own computer (CachyOS) and on my printer. I have also carefully checked the gcode in every possible state this is in and ensured that the unsaved changes dialog properly displays the labels for these settings. Flags are set properly, sliced files properly use the flags if you check for them in machine gcode and default behavior is unaffected for those who have already changed settings for air filtration. From what I can see, this does exactly what it should be doing without any issues.
* make initial layer travel move acceleration and jerk configurable
* Update spelling to match UI pattern
* Update min integer and re-order to match patterns
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Co-authored-by: Thomas Scheiblauer <tom@sharkbay.at>
Co-authored-by: Ioannis Giannakas <59056762+igiannakas@users.noreply.github.com>
Fix segfault in CLI mode when extruder/filament options absent
When slicing via CLI (--slice) with a BBL printer profile such as the
P1S, update_values_to_printer_extruders and
update_values_to_printer_extruders_for_multiple_filaments dereference
option pointers without checking for nullptr first, causing a SIGSEGV.
Root cause: printer profiles that have different_extruder=true (e.g.
P1S variants) trigger these code paths even in single-extruder CLI
invocations where filament_map, extruder_type, and nozzle_volume_type
options may not be present in the resolved config.
Fix: add null guards before dereferencing option<> / dynamic_cast<>
results, consistent with the pattern used in PR #12719. Log a warning
and return early rather than crashing.
Fixes CLI --slice segfault (exit 139) with P1S profiles.
Related: #12426, #12719
Reduce the size of current and new JSONs by standardising them with 1 tab indentation instead of 4 spaces.
This effectively reduces the size by almost 20 MB.
| Current | New |
|---|---|
| 85.2 Mib | 67 Mib |
Used [JQ](https://jqlang.org/) `--tab` to automatically format every current JSON.
> [!NOTE]
> Some profiles had the arrays on the same line, but those created by Orca were in the standard format (each object below the previous one). In some cases, this increases the number of tabs due to the new lines, but the increase is negligible, and this way both the base profiles and those created by Orca maintain the same style.
* identified code for snapping to buidlplate
* rename internal name to ensure_on_bed to be consistent, saves option in 2mf, finish Move UI, use in both ensure_on_bed() functions
* makes auto_drop a per-object setting, removes global setting
* remove adUndef, add auto_drop to constructor/serialize
* fixes drop() button
* add "auto_drop" checkmark to "load as single object" dialog,
nothing changes if auto_drop == yes || "load as single object",
if auto_drop == false and "load as single object" == false the objects now retain their relative position to each other
* retains auto_drop (and printable) state when assembling or splitting objects,
adds ObjectList::printable_state_changed() overload to be able to only provide ModelObject* vector
* adds dialog when splitting to ask if auto_drop should be disabled,
only shows when auto_drop enabled and atleast one volume floating
* adds arrow indicator on bounding box if auto_drop == false
* removes unneeded code, keeps "auto_drop" naming consistent
* makes for loop simpler in set_printable, set_auto_drop and get_auto_drop,
makes get_auto_drop const,
fixes wording in Snapshot text
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Co-authored-by: Hanno Witzleb <hannowitzleb@gmail.com>
Co-authored-by: SoftFever <softfeverever@gmail.com>
Co-authored-by: Ian Bassi <ian.bassi@outlook.com>
* Fix crash-inconsistent draft shield
* Skip empty skirt G-code and fix skirt_done handling
Track whether a skirt was actually generated for the current print Z and avoid appending empty skirt G-code. Only pop m_skirt_done when a skirt was emitted to prevent corrupting skirt state across multiple instances per layer. Also use a temporary string (moved into the main gcode) to detect emptiness before updating state. Preserves existing first-layer clearing behavior.
* Union ex brims
Revert "Union ex brims"
This reverts commit bbc9a39faf318dc2df093eb2bdcebf19a4162fe9.
Update Brim.cpp
* dont repeat paths
* Update Brim.cpp
* multimaterial brim independiente
* Normal brim if is by object
* fix print order
* cleaning 1
* cleaning 2
* Normal brim if multimaterial on first layer
* fix artifact
* combine_brim optional
refactoring
* refactoring gcode.cpp
* refactoring brim.cpp
Update Brim.cpp
* Remove multimaterial first-layer check for brims
Stop detecting extruders used on the first layer and remove the is_multimaterial_first_layer guard. Simplify can_combine_brims to only consider combine_brims and whether printing is ByObject, allowing brims to be combined across extruders unless printing by object or combine_brims is disabled. Cleans up unused code and simplifies brim-generation conditions.
* Remove material specification from unified brim comment
* Update PrintConfig.cpp
