From ed3f0e28983a39a79154c2f762de419d20bbf64b Mon Sep 17 00:00:00 2001
From: Argo <52103738+Argolein@users.noreply.github.com>
Date: Tue, 10 Feb 2026 03:56:38 +0100
Subject: [PATCH] Fix issue #10971 (#12108)
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Sorry had to re-create the PR as I did some chaos in my repo with CLI. xD
Fixes issue https://github.com/OrcaSlicer/OrcaSlicer/issues/10971
Description:
Fix wipe tower filament selection and clean up tool ordering. Added wipe_tower_filament handling to WipeTower2 (store config, mark non-selected tools as “soluble,” and use it in toolchange selection) and ensured the configured wipe‑tower extruder is included in the extruder list for ordering. Removed duplicated/merged tool‑ordering code (extra insert_wipe_tower_extruder definition, duplicate declaration, and redundant reorder block) so the tool order logic runs only once.
---
src/libslic3r/GCode/ToolOrdering.cpp | 36 ++++++++++++++++++++++++----
src/libslic3r/GCode/ToolOrdering.hpp | 1 +
src/libslic3r/GCode/WipeTower.cpp | 2 +-
src/libslic3r/GCode/WipeTower2.cpp | 22 ++++++++++-------
src/libslic3r/GCode/WipeTower2.hpp | 1 +
src/libslic3r/Print.cpp | 6 +++++
6 files changed, 55 insertions(+), 13 deletions(-)
diff --git a/src/libslic3r/GCode/ToolOrdering.cpp b/src/libslic3r/GCode/ToolOrdering.cpp
index 6de65a5dd6..08e004bc30 100644
--- a/src/libslic3r/GCode/ToolOrdering.cpp
+++ b/src/libslic3r/GCode/ToolOrdering.cpp
@@ -306,6 +306,26 @@ void ToolOrdering::handle_dontcare_extruder(unsigned int last_extruder_id)
}
}
+bool ToolOrdering::insert_wipe_tower_extruder()
+{
+ if (!m_print_config_ptr || !m_print_config_ptr->enable_prime_tower)
+ return false;
+ if (m_print_config_ptr->wipe_tower_filament == 0)
+ return false;
+
+ bool changed = false;
+ const unsigned int wipe_extruder = (unsigned int)(m_print_config_ptr->wipe_tower_filament - 1);
+ for (LayerTools < : m_layer_tools) {
+ if (lt.wipe_tower_partitions > 0) {
+ if (std::find(lt.extruders.begin(), lt.extruders.end(), wipe_extruder) == lt.extruders.end()) {
+ lt.extruders.emplace_back(wipe_extruder);
+ changed = true;
+ }
+ }
+ }
+ return changed;
+}
+
void ToolOrdering::sort_and_build_data(const Print& print, unsigned int first_extruder, bool prime_multi_material)
{
// if first extruder is -1, we can decide the first layer tool order before doing reorder function
@@ -328,9 +348,13 @@ void ToolOrdering::sort_and_build_data(const Print& print, unsigned int first_ex
max_layer_height = calc_max_layer_height(print.config(), max_layer_height);
- this->collect_extruder_statistics(prime_multi_material);
-
this->fill_wipe_tower_partitions(print.config(), object_bottom_z, max_layer_height);
+ if (this->insert_wipe_tower_extruder()) {
+ reorder_extruders_for_minimum_flush_volume(reorder_first_layer);
+ this->fill_wipe_tower_partitions(print.config(), object_bottom_z, max_layer_height);
+ }
+
+ this->collect_extruder_statistics(prime_multi_material);
}
void ToolOrdering::sort_and_build_data(const PrintObject& object , unsigned int first_extruder, bool prime_multi_material)
@@ -343,9 +367,13 @@ void ToolOrdering::sort_and_build_data(const PrintObject& object , unsigned int
double max_layer_height = calc_max_layer_height(object.print()->config(), object.config().layer_height);
- this->collect_extruder_statistics(prime_multi_material);
-
this->fill_wipe_tower_partitions(object.print()->config(), object.layers().front()->print_z - object.layers().front()->height, max_layer_height);
+ if (this->insert_wipe_tower_extruder()) {
+ reorder_extruders_for_minimum_flush_volume(reorder_first_layer);
+ this->fill_wipe_tower_partitions(object.print()->config(), object.layers().front()->print_z - object.layers().front()->height, max_layer_height);
+ }
+
+ this->collect_extruder_statistics(prime_multi_material);
}
diff --git a/src/libslic3r/GCode/ToolOrdering.hpp b/src/libslic3r/GCode/ToolOrdering.hpp
index 7f7fc6a6ce..7bbfa2da1f 100644
--- a/src/libslic3r/GCode/ToolOrdering.hpp
+++ b/src/libslic3r/GCode/ToolOrdering.hpp
@@ -258,6 +258,7 @@ private:
void initialize_layers(std::vector &zs);
void collect_extruders(const PrintObject &object, const std::vector> &per_layer_extruder_switches);
void fill_wipe_tower_partitions(const PrintConfig &config, coordf_t object_bottom_z, coordf_t max_layer_height);
+ bool insert_wipe_tower_extruder();
void mark_skirt_layers(const PrintConfig &config, coordf_t max_layer_height);
void collect_extruder_statistics(bool prime_multi_material);
void reorder_extruders_for_minimum_flush_volume(bool reorder_first_layer);
diff --git a/src/libslic3r/GCode/WipeTower.cpp b/src/libslic3r/GCode/WipeTower.cpp
index 0be6748594..4c6ed404b5 100644
--- a/src/libslic3r/GCode/WipeTower.cpp
+++ b/src/libslic3r/GCode/WipeTower.cpp
@@ -1540,7 +1540,7 @@ void WipeTower::set_extruder(size_t idx, const PrintConfig& config)
m_filpar.push_back(FilamentParameters());
m_filpar[idx].material = config.filament_type.get_at(idx);
- m_filpar[idx].is_soluble = config.filament_soluble.get_at(idx);
+ m_filpar[idx].is_soluble = config.wipe_tower_filament == 0 ? config.filament_soluble.get_at(idx) : (idx != size_t(config.wipe_tower_filament - 1));
// BBS
m_filpar[idx].is_support = config.filament_is_support.get_at(idx);
m_filpar[idx].nozzle_temperature = config.nozzle_temperature.get_at(idx);
diff --git a/src/libslic3r/GCode/WipeTower2.cpp b/src/libslic3r/GCode/WipeTower2.cpp
index 19e98e4a09..ba22338eba 100644
--- a/src/libslic3r/GCode/WipeTower2.cpp
+++ b/src/libslic3r/GCode/WipeTower2.cpp
@@ -1227,6 +1227,7 @@ WipeTower::ToolChangeResult WipeTower2::construct_tcr(WipeTowerWriter2& writer,
WipeTower2::WipeTower2(const PrintConfig& config, const PrintRegionConfig& default_region_config,int plate_idx, Vec3d plate_origin, const std::vector>& wiping_matrix, size_t initial_tool) :
m_semm(config.single_extruder_multi_material.value),
m_enable_filament_ramming(config.enable_filament_ramming.value),
+ m_wipe_tower_filament(config.wipe_tower_filament.value),
m_wipe_tower_pos(config.wipe_tower_x.get_at(plate_idx), config.wipe_tower_y.get_at(plate_idx)),
m_wipe_tower_width(float(config.prime_tower_width)),
m_wipe_tower_rotation_angle(float(config.wipe_tower_rotation_angle)),
@@ -1309,7 +1310,10 @@ void WipeTower2::set_extruder(size_t idx, const PrintConfig& config)
m_filpar.push_back(FilamentParameters());
m_filpar[idx].material = config.filament_type.get_at(idx);
- m_filpar[idx].is_soluble = config.filament_soluble.get_at(idx);
+ if (m_wipe_tower_filament > 0)
+ m_filpar[idx].is_soluble = (idx != size_t(m_wipe_tower_filament - 1));
+ else
+ m_filpar[idx].is_soluble = config.filament_soluble.get_at(idx);
m_filpar[idx].temperature = config.nozzle_temperature.get_at(idx);
m_filpar[idx].first_layer_temperature = config.nozzle_temperature_initial_layer.get_at(idx);
m_filpar[idx].filament_minimal_purge_on_wipe_tower = config.filament_minimal_purge_on_wipe_tower.get_at(idx);
@@ -2224,14 +2228,16 @@ void WipeTower2::save_on_last_wipe()
int WipeTower2::first_toolchange_to_nonsoluble(
const std::vector& tool_changes) const
{
- // Orca: allow calculation of the required depth and wipe volume for soluable toolchanges as well
- // NOTE: it's not clear if this is the right way, technically we should disable wipe tower if soluble filament is used as it
- // will will make the wipe tower unstable. Need to revist this in the future.
+ // If a specific wipe tower filament is forced, use it to decide where to finish the layer.
+ if (m_wipe_tower_filament > 0) {
+ for (size_t idx = 0; idx < tool_changes.size(); ++idx) {
+ if (!m_filpar[tool_changes[idx].new_tool].is_soluble)
+ return idx;
+ }
+ return -1;
+ }
+ // Orca: allow calculation of the required depth and wipe volume for soluble toolchanges as well.
return tool_changes.empty() ? -1 : 0;
- //for (size_t idx=0; idx Print::extruders(bool conside_custom_gcode) const
}
}
+ // If a wipe tower filament is explicitly set, ensure it participates in tool ordering.
+ if (has_wipe_tower() && config().wipe_tower_filament != 0 && extruders.size() > 1) {
+ assert(config().wipe_tower_filament > 0 && config().wipe_tower_filament < int(config().nozzle_diameter.size()));
+ extruders.emplace_back(config().wipe_tower_filament - 1); // config value is 1-based
+ }
+
sort_remove_duplicates(extruders);
return extruders;
}