diff --git a/example/example.qrc b/example/example.qrc
index 696c79bc..f69b7c55 100644
--- a/example/example.qrc
+++ b/example/example.qrc
@@ -180,7 +180,6 @@
         <file>qml/window/PageWindow.qml</file>
         <file>qml/page/T_StaggeredLayout.qml</file>
         <file>qml/page/T_Clip.qml</file>
-        <file>qml/page/T_3D.qml</file>
         <file>qml/page/T_Network.qml</file>
         <file>qml/page/T_ShortcutPicker.qml</file>
         <file>qml/chart/T_BarChart.qml</file>
diff --git a/example/example_en_US.ts b/example/example_en_US.ts
index 7f61aa64..cc03fbcc 100644
--- a/example/example_en_US.ts
+++ b/example/example_en_US.ts
@@ -515,11 +515,6 @@
     </message>
     <message>
         <location filename="qml/global/ItemsOriginal.qml" line="487"/>
-        <source>3D</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <location filename="qml/global/ItemsOriginal.qml" line="493"/>
         <source>Test Crash</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/example/example_zh_CN.ts b/example/example_zh_CN.ts
index 950a363d..ab387f56 100644
--- a/example/example_zh_CN.ts
+++ b/example/example_zh_CN.ts
@@ -514,12 +514,11 @@
         <translation type="unfinished">热加载</translation>
     </message>
     <message>
-        <location filename="qml/global/ItemsOriginal.qml" line="487"/>
         <source>3D</source>
-        <translation type="unfinished">3D</translation>
+        <translation type="obsolete">3D</translation>
     </message>
     <message>
-        <location filename="qml/global/ItemsOriginal.qml" line="493"/>
+        <location filename="qml/global/ItemsOriginal.qml" line="487"/>
         <source>Test Crash</source>
         <translation type="unfinished">测试崩溃</translation>
     </message>
diff --git a/example/qml/global/ItemsOriginal.qml b/example/qml/global/ItemsOriginal.qml
index 522b91b5..0479b746 100644
--- a/example/qml/global/ItemsOriginal.qml
+++ b/example/qml/global/ItemsOriginal.qml
@@ -483,12 +483,6 @@ FluObject{
                 FluRouter.navigate("/hotload")
             }
         }
-        FluPaneItem{
-            title: qsTr("3D")
-            menuDelegate: paneItemMenu
-            url: "qrc:/example/qml/page/T_3D.qml"
-            onTap: { navigationView.push(url) }
-        }
         FluPaneItem{
             title: qsTr("Test Crash")
             onTapListener: function(){
diff --git a/example/qml/page/T_3D.qml b/example/qml/page/T_3D.qml
deleted file mode 100644
index 2757decd..00000000
--- a/example/qml/page/T_3D.qml
+++ /dev/null
@@ -1,116 +0,0 @@
-import QtQuick 2.15
-import QtQuick.Layouts 1.15
-import QtQuick.Controls 2.15
-import QtQuick.Window 2.15
-import Qt3D.Core 2.15
-import Qt3D.Render 2.15
-import Qt3D.Input 2.12
-import Qt3D.Extras 2.15
-import QtQuick.Scene3D 2.15
-import Qt.labs.platform 1.1
-import FluentUI 1.0
-import "../component"
-
-FluContentPage{
-
-    id:root
-    title:"3D"
-
-    Scene3D{
-        id:scene_3d
-        anchors.fill: parent
-        focus: true
-        aspects: ["input", "logic"]
-        cameraAspectRatioMode: Scene3D.AutomaticAspectRatio
-        Entity {
-            Camera {
-                id: camera
-                projectionType: CameraLens.PerspectiveProjection
-                fieldOfView: 22.5
-                aspectRatio: scene_3d.width / scene_3d.height
-                nearPlane: 1
-                farPlane: 1000.0
-                viewCenter: Qt.vector3d( 0.0, 0.0, 0.0 )
-                upVector: Qt.vector3d( 0.0, 1.0, 0.0 )
-                position: Qt.vector3d( 0.0, 0.0, 15.0 )
-            }
-            FirstPersonCameraController {
-                linearSpeed: 100
-                lookSpeed: 50
-                camera: camera
-            }
-            components: [
-                RenderSettings{
-                    activeFrameGraph: ForwardRenderer{
-                        clearColor: Qt.rgba(0,0,0,0);
-                        camera: camera
-                    }
-                },
-                InputSettings{}
-            ]
-            Mesh {
-                id: mesh
-                source: "https://zhu-zichu.gitee.io/test.obj"
-            }
-            PhongMaterial {
-                id: material
-                ambient: color_picker.current
-            }
-            Transform{
-                id:transform
-                scale: 1.0
-                translation: Qt.vector3d(0, 0, 0)
-                rotation: fromEulerAngles(0, 0, 0)
-                property real hAngle:0.0
-                NumberAnimation on hAngle{
-                    from:0
-                    to:360.0
-                    duration: 5000
-                    loops: Animation.Infinite
-                }
-                matrix:{
-                    var m=Qt.matrix4x4();
-                    m.rotate(hAngle,Qt.vector3d(0,1,0));
-                    m.translate(Qt.vector3d(0,0,0));
-                    return m;
-                }
-            }
-            Entity {
-                id: entity
-                components: [mesh, material,transform]
-            }
-        }
-    }
-    ColumnLayout{
-        RowLayout{
-            spacing: 10
-            Layout.topMargin: 20
-            FluText{
-                text:"tintColor:"
-                Layout.alignment: Qt.AlignVCenter
-            }
-            FluColorPicker{
-                id:color_picker
-                current: "gray"
-            }
-        }
-
-        FluButton{
-            text:"选择obj资源"
-            onClicked: {
-                file_dialog.open()
-            }
-        }
-    }
-
-    FileDialog {
-        id: file_dialog
-        nameFilters: ["Obj files (*.obj)"]
-        folder: StandardPaths.writableLocation(StandardPaths.DocumentsLocation)
-        onAccepted: {
-            var fileUrl =  file_dialog.currentFile
-            mesh.source = fileUrl
-        }
-    }
-
-}
diff --git a/src/FluFrameless.cpp b/src/FluFrameless.cpp
index 4f3ba47f..e7737804 100644
--- a/src/FluFrameless.cpp
+++ b/src/FluFrameless.cpp
@@ -270,8 +270,10 @@ void FluFrameless::componentComplete() {
         auto geometry = window()->screen()->availableGeometry();
         RECT rect;
         SystemParametersInfo(SPI_GETWORKAREA, 0, &rect, 0);
-        minmaxInfo->ptMinTrackSize.x = window()->minimumWidth() * pixelRatio + offsetXY.x();
-        minmaxInfo->ptMinTrackSize.y = window()->minimumHeight() * pixelRatio + offsetXY.y() + _appbar->height() * pixelRatio;
+        if(!_fixSize){
+            minmaxInfo->ptMinTrackSize.x = window()->minimumWidth() * pixelRatio + offsetXY.x();
+            minmaxInfo->ptMinTrackSize.y = window()->minimumHeight() * pixelRatio + offsetXY.y() + _appbar->height() * pixelRatio;
+        }
         minmaxInfo->ptMaxPosition.x = rect.left - offsetXY.x();
         minmaxInfo->ptMaxPosition.y = rect.top - offsetXY.x();
         minmaxInfo->ptMaxSize.x = qRound(geometry.width() * pixelRatio) + offsetXY.x() * 2;