-What is the most interesting thing you have seen done with a 3D printer or 3D printing technology?
I think the ability to 3D print organs and other biological material is the most amazing thing I've seen. This could have a huge impact on society in the future.

-If you could build your dream 3D printer, what would it include and what would it do? Let your imagination run wild!
A dream 3D printer would be fully automated start to finish. The ability to print any color, any material, and any size needed. No finishing would be needed because the printer would be accurate down to the atomic level. Also, the printer would be able to scan any object and re-print it in any scale with the same materials as the original.