From f2e6a4c08e45c386a0273e53dac5e117fd2c5518 Mon Sep 17 00:00:00 2001
From: Kiss Lorand <50251547+kisslorand@users.noreply.github.com>
Date: Mon, 20 Oct 2025 16:49:06 +0300
Subject: [PATCH] Fix Z offset for 1st layer (#11011)

---
 src/libslic3r/GCode.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index 65ed652495..16f1404273 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -5230,9 +5230,9 @@ std::string GCode::_extrude(const ExtrusionPath &path, std::string description,
             sloped == nullptr ? DBL_MAX : get_sloped_z(sloped->slope_begin.z_ratio)
         );
         m_need_change_layer_lift_z = false;
-        // Orca: force restore Z after unknown last pos
+        // Orca: ensure Z matches planned layer height
         if (_last_pos_undefined && !slope_need_z_travel) {
-            gcode += this->writer().travel_to_z(m_last_layer_z, "force restore Z after unknown last pos", true);
+            gcode += this->writer().travel_to_z(m_nominal_z, "ensure Z matches planned layer height", true);
         }
     }