I liked to watch the 3-d printer make things like the stretchlet and the mini-missile launcher. The material is very strong and hard to break. I saw a lot of 3-D printers at the store and a lot of creations. I now know how to use Google Sketchup and Tinkercad.
I would like to create the mini-missile launcher using 3-D printer software for a little fun. You could also send messages in the missile.
Today we made a miniature rocket launcher that launches a mini-missile up to 20 feet!