diff --git a/src/Editor/BoardMoveTool.ts b/src/Editor/BoardMoveTool.ts
index c57dc4b10..9ecb42d51 100644
--- a/src/Editor/BoardMoveTool.ts
+++ b/src/Editor/BoardMoveTool.ts
@@ -104,7 +104,7 @@ export class BoardMoveTool
             if (obj.visible)
             {
                 i++;
-                if (i > 50)
+                if (i > 30)
                 {
                     let now = performance.now();
                     let r = now - start;
@@ -140,6 +140,7 @@ export class BoardMoveTool
             derv.applyMatrix4(brRot);
             p.setZ(br.Thickness * 0.5);
             p.applyMatrix4(brOCS);
+            await Sleep(1);
             let intersection = this.RayPoint(p, derv, brsObject);
 
             if (intersection)
@@ -173,6 +174,7 @@ export class BoardMoveTool
             {
                 let p = new Vector3(br.Width * 0.5, br.Height * y, br.Thickness).applyMatrix4(brOCS);
                 centerP = centerP ?? p;
+                await Sleep(1);
                 let intersection = this.RayPoint(p, brNormal, brsObject);
                 if (intersection)
                 {
@@ -202,6 +204,7 @@ export class BoardMoveTool
             {
                 let p = new Vector3(br.Width * 0.5, br.Height * y, 0).applyMatrix4(brOCS);
                 centerP = centerP ?? p;
+                await Sleep(1);
                 let intersection = this.RayPoint(p, brNormal2, brsObject);
                 if (intersection)
                 {
diff --git a/src/GraphicsSystem/Viewer.ts b/src/GraphicsSystem/Viewer.ts
index e7ec07a10..051e063be 100644
--- a/src/GraphicsSystem/Viewer.ts
+++ b/src/GraphicsSystem/Viewer.ts
@@ -437,6 +437,7 @@ export class Viewer
                 this._Scene.add(l.DrawObject);
             this.UpdateRender();
 
+            await Sleep(1);
             //预构建板件
             i = 0;
             for (let br of brs)