There are so many things being made with 3D printers and the list grows everyday!
I really like going to Wikipedia to start learning about a topic - like 3D printing for instance. There is a super article on 3D Printing at "wiki". https://en.wikipedia.org/wiki/3D_printing
3D printing is actually ancient - if you look at the lost wax technique in art it is essentially 3D printing.
Also, the original printing presses and woodblock printing are examples of 1D printing and made it possible to mass produce books so that new ideas could be sent around the world. These ideas inspired so many different thinkers, the American Revolution, and even newspapers so people could communicate!
What is new about 3D + printing is that now we take electronic data/scans of original objects (possibly fragile or very old objects ) and recreate the object with a computer by representing the electronic measurements with material. You can print a unique part if something breaks, you can reconstruct an ancient object to study it, and you can make toys or art pieces. So many possibilities.
You ask an excellent question: here is a really great link to a site with 101 ideas of 3 D printable objects:
http://www.instructables.com/id/101-useful-practical-functional-3d-prints/ and this amazing article shows even more very surprising 3D printed objects: https://www.networkworld.com/article/3138513/hardware/10-of-the-coolest-things-made-on-3d-printers.html#slide11
3D printing is very versatile and is only beginning to help us in all areas of study and living. There are many exciting applications in the arts, biomedical, engineering, and scientific areas. One exciting area that combines all these disciplines is 3D printing prosthetics for children who need an actual hand. check out: http://enablingthefuture.org/ . The site gives you instructions on how to volunteer and print assistive devices: http://enablingthefuture.org/upper-limb-prosthetics/
Here is also an article about ISU's College of Design, where they use 3D printers as part of the curriculum:
Victoria recommends the following next steps:
- Check out these links above and see if there are any 3D printers in your area maybe at the library or your school.
- There are also some great YouTube instructional videos that show you how to 3D print. Keep your eyes open for opportunities in this area including future career opportunities in science, technology, engineering, and math.