From a2cff48a469a7b50dca5c0095b942cfdef54faea Mon Sep 17 00:00:00 2001
From: Kiss Lorand <50251547+kisslorand@users.noreply.github.com>
Date: Wed, 22 Apr 2026 02:40:17 +0300
Subject: [PATCH] Extend short-travel smoothing to external overhang walls
 (#11975)

---
 src/libslic3r/GCode.cpp | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index 04a2df48db..b90d70fecd 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -7091,9 +7091,16 @@ std::string GCode::travel_to(const Point& point, ExtrusionRole role, std::string
         if (m_config.default_jerk.value > 0 && m_config.initial_layer_jerk.value > 0) {
             jerk_to_set = m_config.initial_layer_jerk.value;
         }
-    } else {
+    } else { // ORCA: Handle short-travel acceleration and jerk for outer perimeters (if applicable)
+        const bool is_short_travel = travel.length() < scale_(EXTRUDER_CONFIG(retraction_minimum_travel));
+
         if (m_config.default_acceleration.value > 0) {
-            if (role == erExternalPerimeter && travel.length() < scale_(EXTRUDER_CONFIG(retraction_minimum_travel))) {
+            if (role == erOverhangPerimeter && is_short_travel) {
+                const double bridge_acceleration  = m_config.get_abs_value("bridge_acceleration");
+
+                if (bridge_acceleration > 0)
+                    acceleration_to_set = (unsigned int) floor(bridge_acceleration + 0.5);
+            } else if (role == erExternalPerimeter && is_short_travel) {
                 if (m_config.outer_wall_acceleration.value > 0)
                     acceleration_to_set = (unsigned int) floor(m_config.outer_wall_acceleration.value + 0.5);
             } else {
@@ -7103,7 +7110,7 @@ std::string GCode::travel_to(const Point& point, ExtrusionRole role, std::string
         }
 
         if (m_config.default_jerk.value > 0) {
-            if (role == erExternalPerimeter && travel.length() < scale_(EXTRUDER_CONFIG(retraction_minimum_travel))) {
+            if ((role == erExternalPerimeter || role == erOverhangPerimeter) && is_short_travel) {
                 if (m_config.outer_wall_jerk.value > 0)
                     jerk_to_set = m_config.outer_wall_jerk.value;
             } else {