diff --git a/src/libslic3r/GCode/SeamPlacer.cpp b/src/libslic3r/GCode/SeamPlacer.cpp
index a63aae3f1..950b3d064 100644
--- a/src/libslic3r/GCode/SeamPlacer.cpp
+++ b/src/libslic3r/GCode/SeamPlacer.cpp
@@ -1249,7 +1249,7 @@ std::vector<std::pair<size_t, size_t>> SeamPlacer::find_seam_string(const PrintO
             prev_point_index = seam_string.back();
             //String added, prev_point_index updated
             Vec3f dir = (next_seam.position - prev_position);
-            straightening_dir = Vec3f(-dir.x()* 0.5f , -dir.y() * 0.5f, dir.z());
+            straightening_dir = Vec3f(-dir.x()*0.7, -dir.y()*0.7, dir.z());
         } else {
             if (step == 1) {
                 reverse_lookup_direction();
diff --git a/src/libslic3r/GCode/SeamPlacer.hpp b/src/libslic3r/GCode/SeamPlacer.hpp
index 3a205fd92..1a8be9bc2 100644
--- a/src/libslic3r/GCode/SeamPlacer.hpp
+++ b/src/libslic3r/GCode/SeamPlacer.hpp
@@ -150,7 +150,7 @@ public:
     // minimum number of seams needed in cluster to make alignment happen
     static constexpr size_t seam_align_minimum_string_seams = 6;
     // millimeters covered by spline; determines number of splines for the given string
-    static constexpr size_t seam_align_mm_per_segment = 3.0f;
+    static constexpr size_t seam_align_mm_per_segment = 8.0f;
 
     //The following data structures hold all perimeter points for all PrintObject.
     std::unordered_map<const PrintObject*, PrintObjectSeamData> m_seam_per_object;