A CNC would be a great addition to any prototyping shop(Only if I had a shop...). Access to the school CNC was no longer granted after graduation, driving me to build my own. Parts are printed out in life size with a plotter. It makes it easier to keep track of what parts are made and what is not.
This is my first time designing and building something that physically moves with purpose. There are flaws but it was a great learning experience with mechanical design.