When Gabe Draguicevich was asked to help fabricate
a titanium hip implant based on CT (computed
tomography, also known as CAT) scan data,
he had to coordinate numerous technologies to complete the
project. Because the CT data consisted of 2-D cross-sections,
Draguicevich had to stack and align the individual scans to create a
3-D model, which he used to create a polygonal mesh in the form
of a stereolithography (STL) file.
After creating a prototype, he had to verify it against the
original scan data, which was no mean feat considering that
software capable of providing deviation analysis of the model
surface to the STL file did not exist. Finally, Draguic...