diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp index 3e5c583a22..c310d419fd 100644 --- a/src/libslic3r/GCode.cpp +++ b/src/libslic3r/GCode.cpp @@ -2564,7 +2564,7 @@ LayerResult GCodeGenerator::process_layer( } this->set_origin({0, 0}); - bool moved_to_first_point{false}; + this->m_moved_to_first_layer_point = false; // Extrude the skirt, brim, support, perimeters, infill ordered by the extruders. for (const ExtruderExtrusions &extruder_extrusions : extrusions) @@ -2589,7 +2589,7 @@ LayerResult GCodeGenerator::process_layer( this->m_label_objects.update(nullptr); } - if (!moved_to_first_point) { + if (!this->m_moved_to_first_layer_point) { const Vec3crd point{to_3d(first_point, scaled(print_z))}; gcode += this->travel_to_first_position(point, print_z, ExtrusionRole::Mixed, [this]() { @@ -2598,7 +2598,6 @@ LayerResult GCodeGenerator::process_layer( } return m_label_objects.maybe_change_instance(m_writer); }); - moved_to_first_point = true; } if (!extruder_extrusions.skirt.empty()) { @@ -3116,6 +3115,7 @@ std::string GCodeGenerator::travel_to_first_position(const Vec3crd& point, const this->writer().update_position(gcode_point); } + this->m_moved_to_first_layer_point = true; return gcode; } diff --git a/src/libslic3r/GCode.hpp b/src/libslic3r/GCode.hpp index 82e2dc151a..0727f9071f 100644 --- a/src/libslic3r/GCode.hpp +++ b/src/libslic3r/GCode.hpp @@ -429,6 +429,8 @@ private: std::optional m_previous_layer_last_position; std::optional m_previous_layer_last_position_before_wipe; + bool m_moved_to_first_layer_point{false}; + // This needs to be populated during the layer processing! std::unique_ptr m_cooling_buffer; std::unique_ptr m_spiral_vase; diff --git a/src/libslic3r/GCode/WipeTowerIntegration.cpp b/src/libslic3r/GCode/WipeTowerIntegration.cpp index b281060ff8..b36dc9de94 100644 --- a/src/libslic3r/GCode/WipeTowerIntegration.cpp +++ b/src/libslic3r/GCode/WipeTowerIntegration.cpp @@ -68,13 +68,18 @@ std::string WipeTowerIntegration::append_tcr(GCodeGenerator &gcodegen, const Wip gcode += gcodegen.retract_and_wipe(); gcodegen.m_avoid_crossing_perimeters.use_external_mp_once = true; const std::string comment{"Travel to a Wipe Tower"}; - if (gcodegen.last_position) { - gcode += gcodegen.travel_to( - *gcodegen.last_position, xy_point, ExtrusionRole::Mixed, comment, [](){return "";} - ); + if (!gcodegen.m_moved_to_first_layer_point) { + const Vec3crd point = to_3d(xy_point, scaled(z)); + gcode += gcodegen.travel_to_first_position(point, current_z, ExtrusionRole::Mixed, [](){return "";}); } else { - gcode += gcodegen.writer().travel_to_xy(gcodegen.point_to_gcode(xy_point), comment); - gcode += gcodegen.writer().get_travel_to_z_gcode(z, comment); + if (gcodegen.last_position) { + gcode += gcodegen.travel_to( + *gcodegen.last_position, xy_point, ExtrusionRole::Mixed, comment, [](){return "";} + ); + } else { + gcode += gcodegen.writer().travel_to_xy(gcodegen.point_to_gcode(xy_point), comment); + gcode += gcodegen.writer().get_travel_to_z_gcode(z, comment); + } } gcode += gcodegen.unretract(); } else {