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Floating final purge line fix (#14416)

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This commit is contained in:
Rodrigo Faselli
2026-07-18 20:05:31 -03:00
committed by GitHub
parent d6ca71be95
commit b2a7197a07
2 changed files with 15 additions and 7 deletions
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src/libslic3r/GCode.cpp
+1 -1
View File
@@ -1845,7 +1845,7 @@ static std::vector<Vec2d> get_path_of_change_filament(const Print& print)
std::string WipeTowerIntegration::finalize(GCode &gcodegen)
{
std::string gcode;
if (gcodegen.wipe_tower_type() == WipeTowerType::Type2) {
if (gcodegen.wipe_tower_type() == WipeTowerType::Type2 && !m_final_purge.gcode.empty()) {
if (std::abs(gcodegen.writer().get_position().z() - m_final_purge.print_z) > EPSILON)
gcode += gcodegen.change_layer(m_final_purge.print_z);
gcode += append_tcr2(gcodegen, m_final_purge, -1);
src/libslic3r/Print.cpp
+14 -6
View File
@@ -4126,6 +4126,7 @@ void Print::_make_wipe_tower()
// Unload the current filament over the purge tower.
coordf_t layer_height = m_objects.front()->config().layer_height.value;
bool generate_final_purge = true;
if (m_wipe_tower_data.tool_ordering.back().wipe_tower_partitions > 0) {
// The wipe tower goes up to the last layer of the print.
if (wipe_tower.layer_finished()) {
@@ -4137,11 +4138,14 @@ void Print::_make_wipe_tower()
// There is yet enough space at this layer of the wipe tower for the final purge.
}
} else {
// The wipe tower does not reach the last print layer, perform the pruge at the last print layer.
// The wipe tower does not reach the last print layer.
// Skip final purge to avoid generating purge lines in mid-air.
assert(m_wipe_tower_data.tool_ordering.back().wipe_tower_partitions == 0);
wipe_tower.set_layer(float(m_wipe_tower_data.tool_ordering.back().print_z), float(layer_height), 0, false, true);
generate_final_purge = false;
}
m_wipe_tower_data.final_purge = Slic3r::make_unique<WipeTower::ToolChangeResult>(wipe_tower.tool_change((unsigned int) (-1)));
m_wipe_tower_data.final_purge = generate_final_purge
? Slic3r::make_unique<WipeTower::ToolChangeResult>(wipe_tower.tool_change((unsigned int)(-1)))
: Slic3r::make_unique<WipeTower::ToolChangeResult>();
m_wipe_tower_data.used_filament = wipe_tower.get_used_filament();
m_wipe_tower_data.number_of_toolchanges = wipe_tower.get_number_of_toolchanges();
@@ -4237,6 +4241,7 @@ void Print::_make_wipe_tower()
// Unload the current filament over the purge tower.
coordf_t layer_height = m_objects.front()->config().layer_height.value;
bool generate_final_purge = true;
if (m_wipe_tower_data.tool_ordering.back().wipe_tower_partitions > 0) {
// The wipe tower goes up to the last layer of the print.
if (wipe_tower.layer_finished()) {
@@ -4248,11 +4253,14 @@ void Print::_make_wipe_tower()
// There is yet enough space at this layer of the wipe tower for the final purge.
}
} else {
// The wipe tower does not reach the last print layer, perform the pruge at the last print layer.
// The wipe tower does not reach the last print layer.
// Skip final purge to avoid generating purge lines in mid-air.
assert(m_wipe_tower_data.tool_ordering.back().wipe_tower_partitions == 0);
wipe_tower.set_layer(float(m_wipe_tower_data.tool_ordering.back().print_z), float(layer_height), 0, false, true);
generate_final_purge = false;
}
m_wipe_tower_data.final_purge = Slic3r::make_unique<WipeTower::ToolChangeResult>(wipe_tower.tool_change((unsigned int) (-1)));
m_wipe_tower_data.final_purge = generate_final_purge
? Slic3r::make_unique<WipeTower::ToolChangeResult>(wipe_tower.tool_change((unsigned int)(-1)))
: Slic3r::make_unique<WipeTower::ToolChangeResult>();
m_wipe_tower_data.used_filament = wipe_tower.get_used_filament();
m_wipe_tower_data.number_of_toolchanges = wipe_tower.get_number_of_toolchanges();