diff --git a/book/week_14/session_1/intro.ipynb b/book/week_14/session_1/intro.ipynb
index a4640e8..1124704 100644
--- a/book/week_14/session_1/intro.ipynb
+++ b/book/week_14/session_1/intro.ipynb
@@ -38,7 +38,7 @@
     "\n",
     "````\n",
     "\n",
-    "````{admonition} Solution assignment 2\n",
+    "````{admonition} Solution assignment 3\n",
     ":class: tip, dropdown\n",
     "\n",
     "```{figure} intro_data/stresses.svg\n",
diff --git a/book/week_14/session_1/intro_data/Tekening1.vsdx b/book/week_14/session_1/intro_data/Tekening1.vsdx
index 9a9c2f8..59ff5cf 100644
Binary files a/book/week_14/session_1/intro_data/Tekening1.vsdx and b/book/week_14/session_1/intro_data/Tekening1.vsdx differ
diff --git a/book/week_14/session_1/intro_data/structure.svg b/book/week_14/session_1/intro_data/structure.svg
index 724fb26..acc5637 100644
--- a/book/week_14/session_1/intro_data/structure.svg
+++ b/book/week_14/session_1/intro_data/structure.svg
@@ -323,7 +323,7 @@
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-		<g id="group67-190" transform="translate(113.761,-55.6175)" v:mID="67" v:groupContext="group">
+		<g id="group67-190" transform="translate(110.926,-55.6175)" v:mID="67" v:groupContext="group">
 			<title>Maatlijn.67</title>
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 				<title>Maatlijn.31</title>
@@ -331,22 +331,22 @@
 					<title>Blad.69</title>
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 				</g>
-				<g id="shape70-195" v:mID="70" v:groupContext="shape" transform="translate(427.331,302.607) rotate(90)">
+				<g id="shape70-195" v:mID="70" v:groupContext="shape" transform="translate(370.638,302.607) rotate(90)">
 					<title>Blad.70</title>
 					<path d="M0 311.11 L8.5 311.11" class="st13"/>
 				</g>
 				<g id="shape71-198" v:mID="71" v:groupContext="shape" transform="translate(0,-4.25197)">
 					<title>Blad.71</title>
-					<path d="M3.74 311.11 L4.1 311.11 L112.12 311.11" class="st14"/>
+					<path d="M3.74 311.11 L4.1 311.11 L55.43 311.11" class="st14"/>
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 			<g id="shape72-205" v:mID="72" v:groupContext="shape">
 				<title>Blad.72</title>
-				<desc>420 mm</desc>
+				<desc>210 mm</desc>
 				<v:textBlock v:margins="rect(4,4,4,4)" v:tabSpace="42.5197"/>
-				<v:textRect cx="58.1102" cy="304.024" width="116.23" height="14.1732"/>
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-				<text x="38.28" y="307.62" class="st16" v:langID="1043"><v:paragraph v:horizAlign="1"/><v:tabList/>420 mm</text>			</g>
+				<v:textRect cx="29.7638" cy="304.024" width="59.53" height="14.1732"/>
+				<rect x="0" y="296.937" width="59.5276" height="14.1732" class="st11"/>
+				<text x="9.93" y="307.62" class="st16" v:langID="1043"><v:paragraph v:horizAlign="1"/><v:tabList/>210 mm</text>			</g>
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 		<g id="group73-208" transform="translate(237.068,-83.964)" v:mID="73" v:groupContext="group">
 			<title>Maatlijn verticaal</title>
@@ -460,5 +460,30 @@
 			<title>Kracht.100</title>
 			<path d="M17.72 311.11 L18.08 311.11 L24.8 311.11" class="st23"/>
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+		<g id="group101-282" transform="translate(170.454,-55.6175)" v:mID="101" v:groupContext="group">
+			<title>Maatlijn.101</title>
+			<g id="group102-283" transform="translate(0,-9.92126)" v:mID="102" v:groupContext="group">
+				<title>Maatlijn.31</title>
+				<g id="shape103-284" v:mID="103" v:groupContext="shape" transform="translate(311.111,302.607) rotate(90)">
+					<title>Blad.103</title>
+					<path d="M0 311.11 L8.5 311.11" class="st13"/>
+				</g>
+				<g id="shape104-287" v:mID="104" v:groupContext="shape" transform="translate(370.638,302.607) rotate(90)">
+					<title>Blad.104</title>
+					<path d="M0 311.11 L8.5 311.11" class="st13"/>
+				</g>
+				<g id="shape105-290" v:mID="105" v:groupContext="shape" transform="translate(0,-4.25197)">
+					<title>Blad.105</title>
+					<path d="M3.74 311.11 L4.1 311.11 L55.43 311.11" class="st14"/>
+				</g>
+			</g>
+			<g id="shape106-297" v:mID="106" v:groupContext="shape">
+				<title>Blad.106</title>
+				<desc>210 mm</desc>
+				<v:textBlock v:margins="rect(4,4,4,4)" v:tabSpace="42.5197"/>
+				<v:textRect cx="29.7638" cy="304.024" width="59.53" height="14.1732"/>
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+				<text x="9.93" y="307.62" class="st16" v:langID="1043"><v:paragraph v:horizAlign="1"/><v:tabList/>210 mm</text>			</g>
+		</g>
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 </svg>