From 8f10943b690c36127c44e550292c42994c31ae1e Mon Sep 17 00:00:00 2001
From: PavelMikus <pavel.mikus.mail@seznam.cz>
Date: Fri, 3 Mar 2023 14:03:23 +0100
Subject: [PATCH] fix assert fail in cooling buffer, clamp fan speed low limit
 must be same or smaller than high limit

---
 src/libslic3r/GCode/CoolingBuffer.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libslic3r/GCode/CoolingBuffer.cpp b/src/libslic3r/GCode/CoolingBuffer.cpp
index b8e37be84b..b0f811ac44 100644
--- a/src/libslic3r/GCode/CoolingBuffer.cpp
+++ b/src/libslic3r/GCode/CoolingBuffer.cpp
@@ -798,6 +798,7 @@ std::string CoolingBuffer::apply_layer_cooldown(
             m_fan_speed = fan_speed_new;
             new_gcode  += GCodeWriter::set_fan(m_config.gcode_flavor, m_config.gcode_comments, m_fan_speed);
         }
+        custom_fan_speed_limits.first = std::min(custom_fan_speed_limits.first, custom_fan_speed_limits.second);
         return custom_fan_speed_limits;
     };