From 478a3cabc4b7c2eb2ce7f7d40c3ecdcab3d09039 Mon Sep 17 00:00:00 2001
From: QIDI TECH <893239786@qq.com>
Date: Sat, 23 Sep 2023 13:41:54 +0800
Subject: [PATCH] Update P2 P3 fan gcode

---
 src/libslic3r/GCode/CoolingBuffer.cpp | 23 +++++++++++++++++------
 src/libslic3r/GCode/CoolingBuffer.hpp |  3 +++
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/src/libslic3r/GCode/CoolingBuffer.cpp b/src/libslic3r/GCode/CoolingBuffer.cpp
index d7dd59f..83135e4 100644
--- a/src/libslic3r/GCode/CoolingBuffer.cpp
+++ b/src/libslic3r/GCode/CoolingBuffer.cpp
@@ -39,6 +39,9 @@ void CoolingBuffer::reset(const Vec3d &position)
     m_current_pos[2] = float(position.z());
     m_current_pos[4] = float(m_config.travel_speed.value);
     m_fan_speed = -1;
+//Y12
+    m_fan_speed = -1;
+    m_fan_speed = -1;
 }
 
 struct CoolingLine
@@ -807,15 +810,23 @@ std::string CoolingBuffer::apply_layer_cooldown(
         }
         //B15 //B39
         if (int(layer_id) == disable_rapid_cooling_fan_first_layers) {
-            std::ostringstream fan_gcode;
-            fan_gcode << "M106 P2 S" << 255.0 * enable_auxiliary_fan / 100.0 << "\n";
-            new_gcode += fan_gcode.str();
+            int auxiliary_fan_speed_new = 255 * enable_auxiliary_fan / 100;
+            if (auxiliary_fan_speed_new != m_auxiliary_fan_speed) {
+                std::ostringstream fan_gcode;
+                m_auxiliary_fan_speed = auxiliary_fan_speed_new;
+                fan_gcode << "M106 P2 S" << auxiliary_fan_speed_new << "\n";
+                new_gcode += fan_gcode.str();
+            }
         }
         //B25
         if (int(layer_id) == disable_fan_first_layers) {
-            std::ostringstream fan_gcode;
-            fan_gcode << "M106 P3 S" << 255.0 * enable_volume_fan / 100.0 << "\n";
-            new_gcode += fan_gcode.str();
+            int volume_fan_speed_new = 255 * enable_volume_fan / 100;
+            if (volume_fan_speed_new != m_volume_fan_speed) {
+                std::ostringstream fan_gcode;
+                m_volume_fan_speed = volume_fan_speed_new;
+                fan_gcode << "M106 P3 S" << volume_fan_speed_new << "\n";
+                new_gcode += fan_gcode.str();
+            }
         }
 
         if (fan_speed_new != m_fan_speed) {
diff --git a/src/libslic3r/GCode/CoolingBuffer.hpp b/src/libslic3r/GCode/CoolingBuffer.hpp
index 91a81c7..85b3ed3 100644
--- a/src/libslic3r/GCode/CoolingBuffer.hpp
+++ b/src/libslic3r/GCode/CoolingBuffer.hpp
@@ -45,6 +45,9 @@ private:
     std::vector<float>          m_current_pos;
     // Current known fan speed or -1 if not known yet.
     int                         m_fan_speed;
+//Y12
+    int                         m_auxiliary_fan_speed;
+    int                         m_volume_fan_speed;
     // Cached from GCodeWriter.
     // Printing extruder IDs, zero based.
     std::vector<unsigned int>   m_extruder_ids;