diff --git a/notebooks/hotair-box.ipynb b/notebooks/hotair-box.ipynb
index 9d07f7b..1184600 100644
--- a/notebooks/hotair-box.ipynb
+++ b/notebooks/hotair-box.ipynb
@@ -30,7 +30,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 2,
    "id": "6ea87a15-f571-4611-8487-5b7556e2ef45",
    "metadata": {
     "extensions": {
@@ -68,7 +68,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 3,
    "id": "d075a994-76bb-46f7-bdfb-cc6ef449dc43",
    "metadata": {
     "extensions": {
@@ -107,7 +107,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 25,
    "id": "2f3b63fd-d5ea-40b6-a2f9-b31c84cfef36",
    "metadata": {
     "extensions": {
@@ -129,7 +129,7 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "9d3ec588fb884df5b8c6e42dad1615a0",
+       "model_id": "d8b847f39e5f4582b7392e58279f0843",
        "version_major": 2,
        "version_minor": 0
       },
@@ -137,7 +137,7 @@
        "VBox(children=(FloatSlider(value=2.0, description='Width [m]:', layout=Layout(width='500px'), max=5.0, min=0.1…"
       ]
      },
-     "execution_count": 3,
+     "execution_count": 25,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -150,35 +150,37 @@
     "    with out:    \n",
     "    # Volume\n",
     "        volume = width * height * depth\n",
-    "        print( \"Volume: {:.2f} [m3]\".format(volume)) \n",
+    "        print( \"{:<20}{:>6.1f} [m3]\".format(\"Volume:\",volume)) \n",
     "    # Area\n",
     "        area = 2 * (width * height + width * depth + height * depth)\n",
-    "        print( \"Area: {:.2f} [m2]\".format(area)) \n",
+    "        print( \"{:<20}{:>6.1f} [m2]\".format(\"Area:\",area))  \n",
     "    # Coating density (protective film for painting): 300g / 4x5m = 15g/m2       \n",
     "        coatingWeight = coatDens * area\n",
-    "        print( \"Coating weight: {:.2f} [g]\".format(coatingWeight))   \n",
+    "        print( \"{:<20}{:>6.1f} [g]\".format(\"Coating weight:\",coatingWeight))   \n",
     "    # adhesive tape density : average 2g/m   \n",
     "        tapeLength = 2 * width + 2 * depth + 4 * height\n",
     "        tapeWeight = tapeDens * tapeLength\n",
-    "        print( \"Adh.tape length: {:.2f} [m]\".format(tapeLength))          \n",
-    "        print( \"Adh.tape weight: {:.2f} [g]\".format(tapeWeight))          \n",
+    "        print( \"{:<20}{:>6.1f} [m]\".format(\"Adh.tape length:\",tapeLength))          \n",
+    "        print( \"{:<20}{:>6.1f} [g]\".format(\"Adh.tape weight:\",tapeWeight))    \n",
+    "        totalWeight = coatingWeight + tapeWeight\n",
+    "        print( \"{:<20}{:>6.1f} [g]\".format(\"Total ball. weight:\",totalWeight))\n",
     "    # Lift per volume g/m3  \n",
     "    #    airDens = dens_temp_func( airTemp )\n",
     "    #    hotAirDens = dens_temp_func( hotAirTemp )    \n",
     "        airDens = airDensity( airTemp )\n",
     "        hotAirDens = airDensity( hotAirTemp )  \n",
     "        lift = airDens - hotAirDens\n",
-    "        print( \"Lift: {:.2f} [g/m3]\".format(lift))      \n",
+    "        print( \"{:<20}{:>6.1f} [g/m3]\".format(\"Lift/volume:\",lift))      \n",
     "    # Total lift force  lift * volume \n",
     "        totalLiftForce = lift * volume\n",
-    "        print( \"Total lift force: {:.2f} [g]\".format(totalLiftForce))    \n",
+    "        print( \"{:<20}{:>6.1f} [g]\".format(\"Total lift force:\",totalLiftForce))    \n",
     "    # Free lift force totalLiftForce - coatingWeight \n",
-    "        freeLiftForce = totalLiftForce - coatingWeight - tapeWeight - payloadWeight\n",
+    "        freeLiftForce = totalLiftForce - totalWeight - payloadWeight\n",
     "        if freeLiftForce < 0:\n",
     "            color = 'red'\n",
     "        else:\n",
     "            color = None\n",
-    "        print( \"Free lift force:\", colored(\"{:.2f} [g]\".format(freeLiftForce),color))  \n",
+    "        print( colored(\"{:<20}{:>6.1f} [g]\".format(\"Free lift force:\",freeLiftForce),color))  \n",
     "\n",
     "\n",
     "    geometry=BoxBufferGeometry(\n",
diff --git a/notebooks/hotair-pyramid.ipynb b/notebooks/hotair-pyramid.ipynb
index 300a214..0450715 100644
--- a/notebooks/hotair-pyramid.ipynb
+++ b/notebooks/hotair-pyramid.ipynb
@@ -143,7 +143,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 7,
    "id": "2f3b63fd-d5ea-40b6-a2f9-b31c84cfef36",
    "metadata": {
     "extensions": {
@@ -179,7 +179,7 @@
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "e68f02b1e1c548d482d0e63bb21611dc",
+       "model_id": "0fb51f22550140339b0a47adcd7d8f9f",
        "version_major": 2,
        "version_minor": 0
       },
@@ -187,7 +187,7 @@
        "VBox(children=(IntSlider(value=3, description='Segment num:', layout=Layout(width='500px'), max=12, min=3, sty…"
       ]
      },
-     "execution_count": 5,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -199,35 +199,37 @@
     "    with out:        \n",
     "    # Volume\n",
     "        vol = volume(width,heightB,heightT,num)\n",
-    "        print( \"Volume: {:.2f} [m3]\".format(vol)) \n",
+    "        print( \"{:<20}{:>6.1f} [m3]\".format(\"Volume:\",vol)) \n",
     "    # Area\n",
     "        area = surface_area(width,heightB,heightT,num)\n",
-    "        print( \"Area: {:.2f} [m2]\".format(area)) \n",
+    "        print( \"{:<20}{:>6.1f} [m2]\".format(\"Area:\",area)) \n",
     "    # Coating density (from: protective film for painting): 300g / 4x5m = 15g/m2   \n",
     "        coatingWeight = coatDens * area\n",
-    "        print( \"Coating weight: {:.2f} [g]\".format(coatingWeight))  \n",
+    "        print( \"{:<20}{:>6.1f} [g]\".format(\"Coating weight:\",coatingWeight)) \n",
     "    # adhesive tape density : average 2g/m   \n",
     "        tapeLength = num * ( edge_len(outradius(width,num),heightT) + edge_len(outradius(width,num),heightB)  )\n",
     "        tapeWeight = tapeDens * tapeLength\n",
-    "        print( \"Adh.tape length: {:.2f} [m]\".format(tapeLength))          \n",
-    "        print( \"Adh.tape weight: {:.2f} [g]\".format(tapeWeight))          \n",
+    "        print( \"{:<20}{:>6.1f} [m]\".format(\"Adh.tape length:\",tapeLength))          \n",
+    "        print( \"{:<20}{:>6.1f} [g]\".format(\"Adh.tape weight:\",tapeWeight))    \n",
+    "        totalWeight = coatingWeight + tapeWeight\n",
+    "        print( \"{:<20}{:>6.1f} [g]\".format(\"Total ball. weight:\",totalWeight))        \n",
     "    # Lift per volume g/m3  \n",
     "    #    airDens = dens_temp_func( airTemp )\n",
     "    #    hotAirDens = dens_temp_func( hotAirTemp )    \n",
     "        airDens = airDensity( airTemp )\n",
     "        hotAirDens = airDensity( hotAirTemp )  \n",
     "        lift = airDens - hotAirDens\n",
-    "        print( \"Lift: {:.2f} [g/m3]\".format(lift))      \n",
+    "        print( \"{:<20}{:>6.1f} [g/m3]\".format(\"Lift/volume:\",lift))      \n",
     "    # Total lift force  lift * volume \n",
     "        totalLiftForce = lift * vol\n",
-    "        print( \"Total lift force: {:.2f} [g]\".format(totalLiftForce))    \n",
+    "        print( \"{:<20}{:>6.1f} [g]\".format(\"Total lift force:\",totalLiftForce))    \n",
     "    # Free lift force totalLiftForce - coatingWeight \n",
-    "        freeLiftForce = totalLiftForce - coatingWeight - tapeWeight - payloadWeight\n",
+    "        freeLiftForce = totalLiftForce - totalWeight - payloadWeight\n",
     "        if freeLiftForce < 0:\n",
     "            color = 'red'\n",
     "        else:\n",
     "            color = None\n",
-    "        print( \"Free lift force:\", colored(\"{:.2f} [g]\".format(freeLiftForce),color))  \n",
+    "        print( colored(\"{:<20}{:>6.1f} [g]\".format(\"Free lift force:\",freeLiftForce),color))  \n",
     "\n",
     "    \n",
     "# coating geometry    \n",
@@ -309,14 +311,6 @@
     "\n",
     "widgets.VBox([num, width, heightT, heightB, airTemp, hotAirTemp, coatDens,tapeDens,payloadWeight, w])\n"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "0c7663e8-418e-47a9-9c2b-33d787f109ff",
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {