diff --git a/src/main/java/com/ai/da/service/impl/DesignItemServiceImpl.java b/src/main/java/com/ai/da/service/impl/DesignItemServiceImpl.java
index bbb16b20..6b5f8345 100644
--- a/src/main/java/com/ai/da/service/impl/DesignItemServiceImpl.java
+++ b/src/main/java/com/ai/da/service/impl/DesignItemServiceImpl.java
@@ -422,9 +422,9 @@ public class DesignItemServiceImpl extends ServiceImpl<DesignItemMapper, DesignI
                     throw new BusinessException("sysFile.not.found");
                 }
                 modelUrl = sysFile.getUrl();
-                high = 1050;
-                width = 500;
-            } else {
+                high = 700;
+                width = 320;
+            } else if (design.getModelType().equals(ModelType.LIBRARY.getValue())){
                 Library libFile = libraryService.getById(design.getTemplateId());
                 if (Objects.isNull(libFile)) {
                     throw new BusinessException("sysFile.not.found");
@@ -432,6 +432,8 @@ public class DesignItemServiceImpl extends ServiceImpl<DesignItemMapper, DesignI
                 modelUrl = libFile.getUrl();
                 high = libFile.getHigh();
                 width = libFile.getWidth();
+            }else {
+                throw new BusinessException("unknown.modelType");
             }
             LibraryModelPoint modelPoint = libraryModelPointService.getByRelationId(design.getTemplateId(), design.getModelType());
             if (Objects.isNull(modelPoint)) {