This is David Sun. He's the senior mechanical engineer at Iris International, a company doing amazing work in developing medical diagnostic instruments.
In April 2011 David joined the hematology division and began developing functional parts for optical adaptors. Part of his job involves using the company's Objet Eden350 3D printer to create custom threaded cylinders and various instrument parts.
While at home one weekend and trying to entertain his 2 year-old son, David got the notion of 3D printing a small toy car. He quickly sketched the car design in SolidWorks, ensuring that enough design space was left for the wheels to turn smoothly.
Once he began, David decided to have some fun with the Objet Studio, which enables users to easily scale model designs both up and down. The result is these tiny cars that David has kindly sent to us. I've also filmed these cars (below) to show exactly how the wheels continue to function smoothly even in the smallest scale car, which is just 1cm long from end to end!
Fun aside, the Objet 3D printer is being used to build many of the key components of the company's medical diagnostic machines. David believes that the Objet 3D printer has helped to cut the company's product development process, enabling them to more effectively optimize the geometry of their instruments.
Once perfected, these instruments will shorten the analysis process and help health professionals to rapidly and accurately determine human health.
Personally, I'm thrilled to hear how 3D printing is helping to progress yet another important medical invention.
For those of you interested, I will also be posting the STL file for this car for people to download and try for themselves - so stay tuned.
Meanwhile, enjoy the short clip below.