From 9d87257aec75d6700d1c8990f0f92a37fdc9fd1b Mon Sep 17 00:00:00 2001
From: PavelMikus <pavel.mikus.mail@seznam.cz>
Date: Fri, 2 Dec 2022 13:30:18 +0100
Subject: [PATCH] lower the speed, improve params

---
 src/libslic3r/GCode.cpp                    | 4 ++--
 src/libslic3r/GCode/ExtrusionProcessor.hpp | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index ffdf24b1a..4a46269ab 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -3007,7 +3007,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, const std::string_view de
             comment = description;
             comment += description_bridge;
         }
-        double last_set_speed = std::max(10.0, new_points[0].speed_factor * speed) * 60.0;
+        double last_set_speed = std::max(5.0, new_points[0].speed_factor * speed) * 60.0;
         gcode += m_writer.set_speed(last_set_speed, "", comment);
         Vec2d prev = this->point_to_gcode_quantized(new_points[0].p);
         for (size_t i = 1; i < new_points.size(); i++) {
@@ -3016,7 +3016,7 @@ std::string GCode::_extrude(const ExtrusionPath &path, const std::string_view de
             const double line_length = (p - prev).norm();
             gcode += m_writer.extrude_to_xy(p, e_per_mm * line_length, comment);
             prev = p;
-            double new_speed = std::max(10.0, procesed_point.speed_factor * speed) * 60.0;
+            double new_speed = std::max(5.0, procesed_point.speed_factor * speed) * 60.0;
             if (last_set_speed != new_speed) {
                 gcode += m_writer.set_speed(new_speed, "", comment);
                 last_set_speed = new_speed;
diff --git a/src/libslic3r/GCode/ExtrusionProcessor.hpp b/src/libslic3r/GCode/ExtrusionProcessor.hpp
index 7b5f90bd6..076de5468 100644
--- a/src/libslic3r/GCode/ExtrusionProcessor.hpp
+++ b/src/libslic3r/GCode/ExtrusionProcessor.hpp
@@ -126,8 +126,8 @@ public:
         };
 
         float flow_width             = path.width;
-        float min_malformation_dist  = 0.2 * flow_width;
-        float peak_malformation_dist = 0.75 * flow_width;
+        float min_malformation_dist  = 0.1 * flow_width;
+        float peak_malformation_dist = 0.65 * flow_width;
 
         const Points              &original_points = path.polyline.points;
         std::vector<ExtendedPoint> points;
@@ -199,7 +199,7 @@ public:
                 if (curvature > 1.0f) {
                     curvature_penalty = 1.0f;
                 } else if (curvature > 0.1f) {
-                    curvature_penalty = fmin(1.0, distance - min_malformation_dist) * curvature;
+                    curvature_penalty = fmin(1.0, (distance - min_malformation_dist) / flow_width) * curvature;
                 }
                 a.quality -= curvature_penalty;