Figure 4.

Reproducing Designs from Literature (A-I). Graph 1 characterizes the designs using the number of components and connection elements present in the design. The radius of the markers shows that the total effort ($E_{Total}=\sum E_{Primitive}$) required to draw and parameterize the design using a CAD tool eclipses the effort required to create the design using 3DμF. Graph 2 shows the breakdown of the effort required in Drawing and Parameterization for each of the design with different design tools. It also shows how the parameterization process requires more E_{Parameterization} since the manual addition of geometric constraints would typically require the user to continuously modify the constraints while incrementally building the design to prevent overconstraining. Graph 3 further shows the distribution by which different components compose the designs from literature, and it also shows how that even though the complexity of the design might scale in size, the relative distribution of different kinds of components is similar in all of the designs.