diff --git a/libslic3r/Fill/Fill.cpp b/libslic3r/Fill/Fill.cpp
index 7bdaedd..7b4f6a8 100644
--- a/libslic3r/Fill/Fill.cpp
+++ b/libslic3r/Fill/Fill.cpp
@@ -558,7 +558,10 @@ Polylines Layer::generate_sparse_infill_polylines_for_anchoring(FillAdaptive::Oc
 		case ipGyroid:
 		case ipHilbertCurve:
 		case ipArchimedeanChords:
-		case ipOctagramSpiral: break;
+		case ipOctagramSpiral: 
+		//xiamian+
+		case ipFiberSpiral:
+		break;
 		}
 
 		// Create the filler object.
diff --git a/libslic3r/Fill/FillBase.cpp b/libslic3r/Fill/FillBase.cpp
index 883b891..c6ffd8a 100644
--- a/libslic3r/Fill/FillBase.cpp
+++ b/libslic3r/Fill/FillBase.cpp
@@ -56,6 +56,8 @@ Fill* Fill::new_from_type(const InfillPattern type)
     case ipConcentricInternal:  return new FillConcentricInternal();
     // BBS: for bottom and top surface only
     case ipMonotonicLine:       return new FillMonotonicLineWGapFill();
+    //xiamian+
+    case ipFiberSpiral:         return new FillLine();
     default: throw Slic3r::InvalidArgument("unknown type");
     }
 }
diff --git a/libslic3r/PrintConfig.cpp b/libslic3r/PrintConfig.cpp
index 2f7afc9..5998a7c 100644
--- a/libslic3r/PrintConfig.cpp
+++ b/libslic3r/PrintConfig.cpp
@@ -135,7 +135,9 @@ static t_config_enum_values s_keys_map_InfillPattern {
     { "octagramspiral",     ipOctagramSpiral },
     { "supportcubic",       ipSupportCubic },
     { "lightning",          ipLightning },
-    { "crosshatch",         ipCrossHatch}
+    { "crosshatch",         ipCrossHatch},
+    //xiamian+
+    { "fiberspiral",        ipFiberSpiral }
 };
 CONFIG_OPTION_ENUM_DEFINE_STATIC_MAPS(InfillPattern)
 
diff --git a/libslic3r/PrintConfig.hpp b/libslic3r/PrintConfig.hpp
index f97eca1..8b5d3f3 100644
--- a/libslic3r/PrintConfig.hpp
+++ b/libslic3r/PrintConfig.hpp
@@ -56,6 +56,8 @@ enum InfillPattern : int {
     ipHilbertCurve, ipArchimedeanChords, ipOctagramSpiral, ipSupportCubic, ipSupportBase, ipConcentricInternal,
     ipLightning, ipCrossHatch,
     ipCount,
+    //xiamian+
+    ipFiberSpiral
 };
 
 enum class IroningType {