diff --git a/amp_case.py b/amp_case.py
index 369a7f3..e4486ee 100644
--- a/amp_case.py
+++ b/amp_case.py
@@ -38,6 +38,8 @@ result = (
     .box(amp_length, amp_width + bottom_width, bottom_width)
 )
 
+result = result.workplane(offset=-(side_width*2) + middle_width).center((amp_width/2)-(side_width/2)-1, 0).box(side_width, amp_width, amp_height-0.45)
+
 cq.exporters.export(result, "/home/deck/model_files/amp_case.step")
 
 try: