From 29267b58d33b15b3981a33597979ab5c7fd0ea64 Mon Sep 17 00:00:00 2001
From: "lane.wei" <lane.wei@bambulab.com>
Date: Fri, 26 Aug 2022 21:04:13 +0800
Subject: [PATCH] Fix the export_3mf failed issue caused by filename

Change-Id: I54709b9f92af34c9459f2befb68759ee6d03d85b
---
 src/slic3r/GUI/Plater.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 2e5253bec..70bb83460 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -8033,8 +8033,12 @@ void Plater::export_gcode_3mf()
             GUI::file_wildcards(FT_3MF, ext),
             wxFD_SAVE | wxFD_OVERWRITE_PROMPT
         );
-        if (dlg.ShowModal() == wxID_OK)
+        if (dlg.ShowModal() == wxID_OK) {
             output_path = into_path(dlg.GetPath());
+            ext = output_path.extension().string();
+            if (ext != ".3mf")
+                output_path = output_path.string() + ".3mf";
+        }
     }
 
     if (!output_path.empty()) {