diff --git a/resources/views/rd/fire-shutter-drawing/index.blade.php b/resources/views/rd/fire-shutter-drawing/index.blade.php
index 2579282f..91348406 100644
--- a/resources/views/rd/fire-shutter-drawing/index.blade.php
+++ b/resources/views/rd/fire-shutter-drawing/index.blade.php
@@ -1192,6 +1192,12 @@ function fs3dBuild() {
         outShaft.position.set(motorStartX + motorDir * (outLen / 2), 0, 0);
         meshes.motor.add(outShaft);
 
+        // 9) 모터측 브라켓 (모터가 안착되는 브라켓 — 모터 그룹에 포함)
+        const motorBkGeo = new THREE.BoxGeometry(bkW, bkH, bkD);
+        const motorBk = new THREE.Mesh(motorBkGeo, bracketMat);
+        motorBk.position.set(motorDir * (W1 / 2 - bkW / 2), 0, 0);
+        meshes.motor.add(motorBk);
+
         meshes.motor.position.set(0, shaftY, 0);
         scene.add(meshes.motor);