Ball trapped in cage
thingiverse
The ball is printed inside the cage and at the same time, so that when it's done you can move the ball in the cage but you cannot get it out. It's a great fidget toy to illustrate how 3D printing works and it's quite an easy design to replicate yourself if you want to get into 3D designing your own projects.
Download Model from thingiverse
With this file you will be able to print Ball trapped in cage with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Ball trapped in cage.