diff --git a/Cad/FeatureDrivenDrawer.cs b/Cad/FeatureDrivenDrawer.cs
index 03b4285..64d06f7 100644
--- a/Cad/FeatureDrivenDrawer.cs
+++ b/Cad/FeatureDrivenDrawer.cs
@@ -166,7 +166,8 @@ namespace CadParamPluging.Cad
             bool isRolling = !string.IsNullOrWhiteSpace(processMethod) && processMethod.Contains("轧制");
 
             double activeWidth = outerDia;
-            var extraMargin = 40.0; // Default margin
+            double activeHeight = height;
+            var extraMargin = 50.0; // 标注和文字的默认边距（双侧共100）
             
             if (isMachined && isRolling)
             {
@@ -174,28 +175,27 @@ namespace CadParamPluging.Cad
 
                 if (minWallThickness.HasValue && minWallThickness.Value > 0)
                 {
-                    // Width is controlled by min wall thickness (Width = 3 * Wall)
-                    // Schematic mode: 2/3 hole, 1/3 wall
+                    // 示意图模式：视觉宽度 = 最小壁厚 * 3（不是物理外径）
+                    // 比例 2:1 内孔:实体
                     activeWidth = minWallThickness.Value * 3.0;
                 }
                 else
                 {
-                    // Fallback: visual width is fixed to 3.0 * Height
+                    // 降级：视觉宽度 = 高度 * 3
                     activeWidth = height * 3.0;
                 }
 
-                // Increase margin significantly for schematic mode to avoid "Too Small" detection
-                // leading to unnecessary zoom-in suggestions (e.g. 1:1.35).
-                // Effectively claims a larger safe zone around the small schematic.
-                extraMargin = 120;
+                // 示意图模式下，图形较小，标注边距也相应调整
+                // 但不要过大，否则会错误触发"超出边框"检测
+                extraMargin = 60.0; // 示意图的边距稍大于默认值
             }
 
-            // 环形图形：宽度=外径（X方向），高度=高度参数（Y方向）
-            // 加上标注的额外空间
+            // 环形图形：宽度=视觉宽度（X方向），高度=高度参数（Y方向）
+            // 加上标注的额外空间（双侧）
             return new ExpectedDrawingSize
             {
                 Width = activeWidth + extraMargin * 2,
-                Height = height + extraMargin * 2
+                Height = activeHeight + extraMargin * 2
             };
         }
 
diff --git a/UI/ParamDrawingPanel.cs b/UI/ParamDrawingPanel.cs
index 0057e33..6d4ffb9 100644
--- a/UI/ParamDrawingPanel.cs
+++ b/UI/ParamDrawingPanel.cs
@@ -353,6 +353,15 @@ namespace CadParamPluging.UI
                         // 1. 获取预估图形尺寸 (不含标注的纯几何尺寸 + 预留边距)
                         var expectedSize = FeatureDrivenDrawer.CalculateExpectedSize(bag, tplParams.SheetSize);
                         
+                        // 调试：输出关键参数以排查比例建议错误
+                        var debugDelivery = bag.GetString("DeliveryStatus");
+                        var debugProcess = bag.GetString("ProcessMethod");
+                        var debugMinWall = bag.GetDoubleOrNull("MinWallThickness");
+                        var debugHeight = bag.GetDoubleOrNull("Height1");
+                        var debugOuterDia = bag.GetDoubleOrNull("OuterDiameter1");
+                        AppendLog($"[调试] 交付状态={debugDelivery}, 工艺方法={debugProcess}");
+                        AppendLog($"[调试] 外径D1={debugOuterDia}, 高度H1={debugHeight}, 最小壁厚={debugMinWall}, 结构={tplParams.SheetSize}");
+                        
                         if (expectedSize.IsValid)
                         {
                             var currentDrawW = expectedSize.Width * scaleFactor;
@@ -364,6 +373,7 @@ namespace CadParamPluging.UI
                             // 调试日志
                             AppendLog($"[尺寸检查] 白框尺寸: {frameWidth:F0}x{frameHeight:F0}, 预期图形(原始): {expectedSize.Width:F0}x{expectedSize.Height:F0}, 当前比例: 1:{(1/scaleFactor):F1}");
                             AppendLog($"[尺寸检查] 预期图形(缩放后): {currentDrawW:F0}x{currentDrawH:F0}, 超出={isOverflow}, 过小={isTooSmall}");
+                            AppendLog($"[尺寸检查] 判断阈值: 超出条件(W>{frameWidth:F0} || H>{frameHeight:F0}), 过小条件(W<{frameWidth*0.3:F0} && H<{frameHeight*0.3:F0})");
 
                             if (isOverflow || isTooSmall)
                             {