Purge tower last layer collision potential fix (for SEMM)

ichisaur · Sep 27, 2024 · 9fc465c · 9fc465c
1 parent 27cd983
commit 9fc465c
Showing 1 changed file with 9 additions and 5 deletions.
diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
@@ -766,11 +766,15 @@ static std::vector<Vec2d> get_path_of_change_filament(const Print& print)
                 gcodegen.m_wipe.reset_path();                                           // We don't want wiping on the ramming lines.
             toolchange_gcode_str = gcodegen.set_extruder(new_extruder_id, tcr.print_z); // TODO: toolchange_z vs print_z
             if (gcodegen.config().enable_prime_tower) {
-            deretraction_str += gcodegen.writer().travel_to_z(z, "restore layer Z");
-            Vec3d position{gcodegen.writer().get_position()};
-            position.z() = z;
-            gcodegen.writer().set_position(position);
-            deretraction_str += gcodegen.unretract();
+                // ORCA: For SEMM, this move causes the nozzle to crash on the wipe tower for the final wipe layer.
+                // TODO: Requires validation whether this is an issue even with multi extruder printers
+                if(!this->m_single_extruder_multi_material){
+                    deretraction_str += gcodegen.writer().travel_to_z(z, "restore layer Z");
+                    Vec3d position{gcodegen.writer().get_position()};
+                    position.z() = z;
+                    gcodegen.writer().set_position(position);
+                }
+                deretraction_str += gcodegen.unretract();
             }
         }