Have you ever wondered if it was possible to 3D Print a functional key? Well, it is and I can assure you that it works just fine. I would not use it as a main key, but it is great to print a few spare keys to your room, office or house. Save your key on a usb stick or cloud drive and print it anywhere!
Download OpenScad here for your operating system. If you've never used or heard of OpenScad before, it is a great way to create customizable parametric models. This means that I could give an OpenScad model to someone with zero modeling experience and that can modify it just by changing a few numbers.