diff --git a/monitor/case.py b/monitor/case.py
index 609cb76..35f3427 100644
--- a/monitor/case.py
+++ b/monitor/case.py
@@ -37,54 +37,72 @@ back_reinforcement = (
 
 threaded_inserts = cq.Sketch().rarray(width / 8, 0, 4, 1).circle(ti_radius, mode="a")
 
-# Case for the screen
-case = (
-    # Basic filleted box shape
-    cq.Workplane("bottom")
-    .lineTo(-width, 0)
-    .lineTo(-width, height)
-    .lineTo(0, height)
-    .close()
-    .extrude(length)
-    .faces(">X")
-    .shell(-shell_t)
-    .edges("|X")
-    .fillet(fillet_s)
-    # Cutout visible screen area from top face
-    .faces(">Z")
-    .workplane(centerOption="CenterOfBoundBox")
-    .center((width - screen_w) / 2 - screen_left_margin, 0)
-    .placeSketch(screen_cutout)
-    .cutBlind(-shell_t)
-    # Cutout for segment breaks
-    .faces(">Z")
-    .workplane(centerOption="CenterOfBoundBox")
-    .center(0, length / 2)
-    .placeSketch(segment_breaks_top)
-    .cutBlind(-1000)
-    .center(0, -length)
-    .placeSketch(segment_breaks_bottom)
-    .cutBlind(-1000)
-    # Cutout for the circuit board
-    .faces("<Z")
-    .workplane(centerOption="CenterOfBoundBox")
-    .center(width / 2 - 27.5, 0)
-    .placeSketch(board_cutout)
-    .cutBlind(-shell_t)
-    # Make some room for the ribbon cable
-    .faces("<Z[-2]")
-    .workplane(centerOption="CenterOfBoundBox")
-    .placeSketch(cable_relief)
-    .cutBlind(-1)
-    # Back reinforcement with holes for threaded inserts
-    .faces("<Z")
-    .workplane(centerOption="CenterOfBoundBox")
-    .placeSketch(back_reinforcement)
-    .extrude(1 + 1 + ti_depth - shell_t)
-    .faces("<Z")
-    .workplane(centerOption="CenterOfBoundBox")
-    .placeSketch(threaded_inserts)
-    .cutBlind(-ti_depth)
-)
 
-exporters.export(case, "case.stl")
+def case():
+    # Case for the screen
+    return (
+        # Basic filleted box shape
+        cq.Workplane("bottom")
+        .lineTo(-width, 0)
+        .lineTo(-width, height)
+        .lineTo(0, height)
+        .close()
+        .extrude(length)
+        .faces(">X")
+        .shell(-shell_t)
+        .edges("|X")
+        .fillet(fillet_s)
+        # Cutout visible screen area from top face
+        .faces(">Z")
+        .workplane(centerOption="CenterOfBoundBox")
+        .center((width - screen_w) / 2 - screen_left_margin, 0)
+        .placeSketch(screen_cutout)
+        .cutBlind(-shell_t)
+        # Cutout for segment breaks
+        .faces(">Z")
+        .workplane(centerOption="CenterOfBoundBox")
+        .center(0, length / 2)
+        .placeSketch(segment_breaks_top)
+        .cutBlind(-1000)
+        .center(0, -length)
+        .placeSketch(segment_breaks_bottom)
+        .cutBlind(-1000)
+        # Cutout for the circuit board
+        .faces("<Z")
+        .workplane(centerOption="CenterOfBoundBox")
+        .center(width / 2 - 27.5, 0)
+        .placeSketch(board_cutout)
+        .cutBlind(-shell_t)
+        # Make some room for the ribbon cable
+        .faces("<Z[-2]")
+        .workplane(centerOption="CenterOfBoundBox")
+        .placeSketch(cable_relief)
+        .cutBlind(-1)
+        # Back reinforcement with holes for threaded inserts
+        .faces("<Z")
+        .workplane(centerOption="CenterOfBoundBox")
+        .placeSketch(back_reinforcement)
+        .extrude(1 + 1 + ti_depth - shell_t)
+        .faces("<Z")
+        .workplane(centerOption="CenterOfBoundBox")
+        .placeSketch(threaded_inserts)
+        .cutBlind(-ti_depth)
+    )
+
+
+full_case = case()
+exporters.export(full_case, "case.stl")
+
+top_case = (case()
+    .faces(">X")
+    .workplane(offset=-width/2)
+    .split(keepTop=True)
+)
+exporters.export(top_case, "case_1.stl")
+
+bottom_case = (case()
+    .faces(">X")
+    .workplane(offset=-width/2)
+    .split(keepBottom=True)
+)
+exporters.export(bottom_case, "case_2.stl")