For nonvarying z-axis prototypes, once the base voxel layer
is constructed it is simply duplicated to fill the workspace in
the z-dimension; an example phenotype is shown in Fig. 2.
When production is desired, the 3-D binary voxel array is
converted to stereolithography (STL) format. Once encoded in
STL, it then undergoes post-processing with the application of
50 Laplacian smoothing steps using Meshlab1; see smoothed
example phenotype in Fig. 3. Finally the object is converted
to printer-readable G-code and is subsequently fabricated on
a BFB 3000 printer using a polylactic acid (PLA) bioplastic.
Fig. 4 shows the smoothed object after fabrication.