diff --git a/.venv b/.venv
index 9c558e3..b401185 100644
--- a/.venv
+++ b/.venv
@@ -1 +1 @@
-.
+cadquery
diff --git a/monitor/modelo.py b/monitor/modelo.py
index e69de29..1db5ee9 100644
--- a/monitor/modelo.py
+++ b/monitor/modelo.py
@@ -0,0 +1,56 @@
+import cadquery2 as cq
+from cadquery2 import exporters
+
+shell_t = 2.5
+
+# width, length VISIBLE WITHIN THE BEZEL
+screen_w = 223
+screen_l = 57
+# Distance from the left of the case to screen cutout
+screen_left_margin = 7 + shell_t  #  (7 is bezel width on that side)
+# width, length, height INCLUDING_BEZEL
+display_w = 233
+display_l = 65
+display_h = 5
+
+width = 250
+height = display_h + 2 * shell_t + 1
+length = display_l + 2 * shell_t + 1
+fillet_s = 2
+
+
+# Distance from the left of the case to display end
+display_left_margin = screen_left_margin - 7
+# Distance from the right of the case to display end
+display_right_margin = width - display_left_margin - display_w
+# Distance from the top of the case to display top
+display_top_margin = (length - display_l) / 2
+display_bottom_margin = display_top_margin  # Symmetrical
+
+
+screen_cutout = (
+    cq.Sketch().trapezoid(screen_w, screen_l, 90, mode="a").reset().vertices().fillet(1)
+)
+
+
+# Holder for the screen (other half of the case)
+screen_base = (
+    # 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)
+)
+
+exporters.export(screen_base, "screen_base.stl")