fixup! fixup! Update second cycle section

content/case_experiment_scara.tex

@@ -172,19 +172,3 @@
             Both options are not ideal, the first one does not allow a simple basic model and the second approach redoes work.
             The advantage of starting with 3D is that allows for a continuous development of one model, instead of switching the complete model.
 
-        \subsection{Prototype Construction}
-        Together with the physics model there will be a solid 3D CAD model.
-        The CAD model helps to check with dimensions and possible collisions of objects.
-
-            With a full dynamics model in 20-sim, the next step was to design the system in OpenSCAD.
-            Although 20-sim has a 3D editor, it is significantly easier to build components with OpenSCAD.
-            Furthermore, for prototyping the OpenSCAD objects can be exported for 3D printing.
-            The model made it possible to check component clearance and get an idea of size.
-            The model is shown in \autoref{fig:scad_carriage}.
-            \begin{figure}
-                \centering
-                \includegraphics[width=0.8\linewidth]{graphics/scad_carriage.png}
-                \caption{Rendered 3D model of the SCARA}
-                \label{fig:scad_carriage}
-            \end{figure}
-