diff --git a/src/FffGcodeWriter.cpp b/src/FffGcodeWriter.cpp
index 5554355ba3..8f7d993811 100644
--- a/src/FffGcodeWriter.cpp
+++ b/src/FffGcodeWriter.cpp
@@ -143,28 +143,28 @@ void FffGcodeWriter::writeGCode(SliceDataStorage& storage, TimeKeeper& time_keep
         findLayerSeamsForSpiralize(storage, total_layers);
     }
 
-    // int process_layer_starting_layer_nr = 0;
+    int process_layer_starting_layer_nr = 0;
     const bool has_raft = scene.current_mesh_group->settings.get<EPlatformAdhesion>("adhesion_type") == EPlatformAdhesion::RAFT;
     if (has_raft)
     {
         processRaft(storage);
         // process filler layers to fill the airgap with helper object (support etc) so that they stick better to the raft.
         // only process the filler layers if there is anything to print in them.
-        /*for (bool extruder_is_used_in_filler_layers : storage.getExtrudersUsed(-1))
+        for (bool extruder_is_used_in_filler_layers : storage.getExtrudersUsed(-1))
         {
             if (extruder_is_used_in_filler_layers)
             {
                 process_layer_starting_layer_nr = -Raft::getFillerLayerCount();
                 break;
             }
-        }*/
+        }
     }
 
     run_multiple_producers_ordered_consumer(
-        // process_layer_starting_layer_nr,
-        -Raft::getTotalExtraLayers(),
-        // total_layers + Raft::getFillerLayerCount() - 1,
-        total_layers,
+        process_layer_starting_layer_nr,
+        //-Raft::getTotalExtraLayers(),
+        total_layers + Raft::getFillerLayerCount() - 1,
+        // total_layers,
         [&storage, total_layers, this](int layer_nr)
         {
             return &processLayer(storage, layer_nr, total_layers);
diff --git a/src/PrimeTower.cpp b/src/PrimeTower.cpp
index 316be75b3a..9845eff054 100644
--- a/src/PrimeTower.cpp
+++ b/src/PrimeTower.cpp
@@ -149,22 +149,24 @@ void PrimeTower::generatePaths_denseInfill()
         else
         {
             // Generate the pattern for the first layer.
-            coord_t line_width_layer0 = line_width * scene.extruders[extruder_nr].settings.get<Ratio>("initial_layer_line_width_factor");
+            const coord_t line_width_layer0 = scene.extruders[extruder_nr].settings.get<coord_t>("raft_base_line_width");
             ExtrusionMoves& pattern_layer0 = pattern_per_extruder_layer0[extruder_nr];
 
             // Generate a concentric infill pattern in the form insets for the prime tower's first layer instead of using
             // the infill pattern because the infill pattern tries to connect polygons in different insets which causes the
             // first layer of the prime tower to not stick well.
-            Polygons inset = outer_poly.offset(-(-cumulative_inset - line_width_layer0 / 2));
-            /*while (! inset.empty())
+            Polygons inset = outer_poly.offset(-cumulative_inset - line_width_layer0 / 2);
+            while (! inset.empty())
             {
                 pattern_layer0.polygons.add(inset);
                 inset = inset.offset(-line_width_layer0);
-            }*/
+            }
+
+            Polygons outset = outer_poly.offset(cumulative_inset + line_width_layer0 / 2);
             for (int i = 0; i < 15; ++i)
             {
-                pattern_layer0.polygons.add(inset);
-                inset = inset.offset(line_width_layer0);
+                pattern_layer0.polygons.add(outset);
+                outset = outset.offset(line_width_layer0);
             }
         }
         cumulative_inset += wall_nr * line_width;
@@ -230,19 +232,27 @@ void PrimeTower::addToGcode(const SliceDataStorage& storage, LayerPlan& gcode_la
 
 void PrimeTower::addToGcode_denseInfill(LayerPlan& gcode_layer, const size_t extruder_nr) const
 {
-    const GCodePathConfig& config = gcode_layer.configs_storage.prime_tower_config_per_extruder[extruder_nr];
+    const GCodePathConfig& config
+        = gcode_layer.getLayerNr() < 0 ? gcode_layer.configs_storage.raft_base_config : gcode_layer.configs_storage.prime_tower_config_per_extruder[extruder_nr];
 
-    const ExtrusionMoves& pattern = pattern_per_extruder[extruder_nr];
-    gcode_layer.addPolygonsByOptimizer(pattern.polygons, config);
-    gcode_layer.addLinesByOptimizer(pattern.lines, config, SpaceFillType::Lines);
 
     // if (gcode_layer.getLayerNr() == -static_cast<LayerIndex>(Raft::getTotalExtraLayers()))
     if (gcode_layer.getLayerNr() < 0 && extruder_nr == 0)
     {
+        const GCodePathConfig& config = gcode_layer.configs_storage.raft_base_config;
+
         const ExtrusionMoves& pattern0 = pattern_per_extruder_layer0[extruder_nr];
         gcode_layer.addPolygonsByOptimizer(pattern0.polygons, config);
         gcode_layer.addLinesByOptimizer(pattern0.lines, config, SpaceFillType::Lines);
     }
+    else
+    {
+        const GCodePathConfig& config = gcode_layer.configs_storage.prime_tower_config_per_extruder[extruder_nr];
+
+        const ExtrusionMoves& pattern = pattern_per_extruder[extruder_nr];
+        gcode_layer.addPolygonsByOptimizer(pattern.polygons, config);
+        gcode_layer.addLinesByOptimizer(pattern.lines, config, SpaceFillType::Lines);
+    }
 }
 
 void PrimeTower::subtractFromSupport(SliceDataStorage& storage)
diff --git a/src/gcodeExport.cpp b/src/gcodeExport.cpp
index caff200811..799ac84e0c 100644
--- a/src/gcodeExport.cpp
+++ b/src/gcodeExport.cpp
@@ -1498,7 +1498,7 @@ void GCodeExport::writeTemperatureCommand(const size_t extruder, const Temperatu
         *output_stream << " T" << extruder;
     }
 #ifdef ASSERT_INSANE_OUTPUT
-    assert(temperature >= 0);
+    // assert(temperature >= 0);
 #endif // ASSERT_INSANE_OUTPUT
     *output_stream << " S" << PrecisionedDouble{ 1, temperature } << new_line;
     if (extruder != current_extruder && always_write_active_tool)
diff --git a/src/raft.cpp b/src/raft.cpp
index 16134f55bc..384958afc4 100644
--- a/src/raft.cpp
+++ b/src/raft.cpp
@@ -113,7 +113,15 @@ coord_t Raft::getFillerLayerHeight()
         const coord_t normal_layer_height = mesh_group_settings.get<coord_t>("layer_height");
         return normal_layer_height;
     }
-    return round_divide(getZdiffBetweenRaftAndLayer0(), getFillerLayerCount());
+
+    if (getFillerLayerCount() != 0)
+    {
+        return round_divide(getZdiffBetweenRaftAndLayer0(), getFillerLayerCount());
+    }
+    else
+    {
+        return mesh_group_settings.get<coord_t>("layer_height");
+    }
 }