diff --git a/tractrudeuse_v2.ipynb b/tractrudeuse_v2.ipynb
index 1a320e3..2fae3a7 100644
--- a/tractrudeuse_v2.ipynb
+++ b/tractrudeuse_v2.ipynb
@@ -6,8 +6,8 @@
    "metadata": {
     "collapsed": true,
     "ExecuteTime": {
-     "end_time": "2026-05-17T23:28:42.138106727Z",
-     "start_time": "2026-05-17T23:28:27.883466201Z"
+     "end_time": "2026-05-19T11:55:17.570088671Z",
+     "start_time": "2026-05-19T11:55:03.200373107Z"
     }
    },
    "source": [
@@ -78,6 +78,8 @@
     "\n",
     "# Bac\n",
     "bac_hauteur = 100.0  # mm\n",
+    "# Hauteur du bord de la lèvres qui tient\n",
+    "bac_hauteur_levre = 30 # mm\n",
     "\n",
     "# Fixations couvercle\n",
     "vis_diam = 4 + 1\n",
@@ -418,20 +420,32 @@
     "        top_face = faces().sort_by(Axis.Z)[-1]\n",
     "\n",
     "        with BuildSketch(top_face) as sk:\n",
-    "            # Position relative au centre de la face (origine du sketch)\n",
-    "            with Locations(Location((0, 0))):\n",
-    "                Rectangle(bloc_extrudeur_ext_x + emboitement_jeu * 2,\n",
-    "                          bloc_extrudeur_ext_y + emboitement_jeu * 2)\n",
+    "            Rectangle(bloc_extrudeur_ext_x + emboitement_jeu * 2,\n",
+    "                      bloc_extrudeur_ext_y + emboitement_jeu * 2)\n",
     "\n",
     "        extrude(amount=-emboitement_profondeur, mode=Mode.SUBTRACT)\n",
     "\n",
     "        with BuildSketch(top_face) as sk:\n",
-    "            # Position relative au centre de la face (origine du sketch)\n",
-    "            with Locations(Location((0, 0))):\n",
-    "                Rectangle(bloc_extrudeur_ext_x - epaisseur_paroi / 2,\n",
-    "                          bloc_extrudeur_ext_y - epaisseur_paroi / 2)\n",
+    "            Rectangle(bloc_extrudeur_ext_x - epaisseur_paroi,\n",
+    "                      bloc_extrudeur_ext_y - epaisseur_paroi)\n",
+    "\n",
+    "        extrude(amount=-(bac_hauteur - (epaisseur_paroi)), mode=Mode.SUBTRACT)\n",
+    "\n",
+    "        with BuildSketch(Plane(top_face).offset(-(bac_hauteur_levre + emboitement_profondeur))):\n",
+    "            Rectangle(bloc_extrudeur_ext_x,\n",
+    "                      bloc_extrudeur_ext_y)\n",
+    "\n",
+    "        extrusion_height = bac_hauteur - (epaisseur_paroi + bac_hauteur_levre + emboitement_profondeur)\n",
+    "        extrude(amount=-extrusion_height, mode=Mode.SUBTRACT)\n",
+    "\n",
+    "        with BuildSketch(Plane(top_face).offset(-emboitement_profondeur)):\n",
+    "            Rectangle(bloc_extrudeur_ext_x - epaisseur_paroi,\n",
+    "                      bloc_extrudeur_ext_y - epaisseur_paroi)\n",
+    "        with BuildSketch(Plane(top_face).offset(-(bac_hauteur_levre + emboitement_profondeur))):\n",
+    "            Rectangle(bloc_extrudeur_ext_x,\n",
+    "                      bloc_extrudeur_ext_y)\n",
+    "        loft(mode=Mode.SUBTRACT)\n",
     "\n",
-    "        extrude(amount=-(bac_hauteur - epaisseur_paroi), mode=Mode.SUBTRACT)\n",
     "\n",
     "    return p.part\n",
     "\n",
@@ -494,31 +508,73 @@
      ]
     }
    ],
-   "execution_count": 157
+   "execution_count": 2
   },
   {
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2026-05-14T23:44:03.217747593Z",
-     "start_time": "2026-05-14T23:44:03.171779231Z"
+     "end_time": "2026-05-18T23:18:32.922490156Z",
+     "start_time": "2026-05-18T23:18:32.423433469Z"
     }
    },
    "cell_type": "code",
-   "source": "fente_profondeur",
+   "source": [
+    "bac_hauteur_levre = 30\n",
+    "\n",
+    "def make_bac_recup():\n",
+    "    with BuildPart() as p:\n",
+    "        # Corps extérieur\n",
+    "        Box(bac_ext_x, bac_ext_y, bac_hauteur)\n",
+    "\n",
+    "        top_edges = faces().sort_by(Axis.Z)[-1].edges()\n",
+    "        lateral_edges = edges().filter_by(Axis.Z)\n",
+    "        chamfer(top_edges + lateral_edges, length=2)\n",
+    "\n",
+    "        top_face = faces().sort_by(Axis.Z)[-1]\n",
+    "\n",
+    "        with BuildSketch(top_face) as sk:\n",
+    "            Rectangle(bloc_extrudeur_ext_x + emboitement_jeu * 2,\n",
+    "                      bloc_extrudeur_ext_y + emboitement_jeu * 2)\n",
+    "\n",
+    "        extrude(amount=-emboitement_profondeur, mode=Mode.SUBTRACT)\n",
+    "\n",
+    "        with BuildSketch(top_face) as sk:\n",
+    "            Rectangle(bloc_extrudeur_ext_x - epaisseur_paroi,\n",
+    "                      bloc_extrudeur_ext_y - epaisseur_paroi)\n",
+    "\n",
+    "        extrude(amount=-(bac_hauteur - (epaisseur_paroi)), mode=Mode.SUBTRACT)\n",
+    "\n",
+    "        with BuildSketch(Plane(top_face).offset(-(bac_hauteur_levre + emboitement_profondeur))):\n",
+    "            Rectangle(bloc_extrudeur_ext_x,\n",
+    "                      bloc_extrudeur_ext_y)\n",
+    "\n",
+    "        extrusion_height = bac_hauteur - (epaisseur_paroi + bac_hauteur_levre + emboitement_profondeur)\n",
+    "        extrude(amount=-extrusion_height, mode=Mode.SUBTRACT)\n",
+    "\n",
+    "        with BuildSketch(Plane(top_face).offset(-emboitement_profondeur)):\n",
+    "            Rectangle(bloc_extrudeur_ext_x - epaisseur_paroi,\n",
+    "                      bloc_extrudeur_ext_y - epaisseur_paroi)\n",
+    "        with BuildSketch(Plane(top_face).offset(-(bac_hauteur_levre + emboitement_profondeur))):\n",
+    "            Rectangle(bloc_extrudeur_ext_x,\n",
+    "                      bloc_extrudeur_ext_y)\n",
+    "        loft(mode=Mode.SUBTRACT)\n",
+    "\n",
+    "\n",
+    "    return p.part\n",
+    "\n",
+    "show(make_bac_recup())"
+   ],
    "id": "a3d65d64eb54186b",
    "outputs": [
     {
-     "data": {
-      "text/plain": [
-       "92.5"
-      ]
-     },
-     "execution_count": 106,
-     "metadata": {},
-     "output_type": "execute_result"
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "+\n"
+     ]
     }
    ],
-   "execution_count": 106
+   "execution_count": 164
   },
   {
    "metadata": {
@@ -599,8 +655,8 @@
   {
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2026-05-17T23:37:18.404982125Z",
-     "start_time": "2026-05-17T23:37:03.924008868Z"
+     "end_time": "2026-05-18T23:37:55.903337866Z",
+     "start_time": "2026-05-18T23:37:52.010830090Z"
     }
    },
    "cell_type": "code",
@@ -616,12 +672,12 @@
        "True"
       ]
      },
-     "execution_count": 158,
+     "execution_count": 166,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
-   "execution_count": 158
+   "execution_count": 166
   }
  ],
  "metadata": {