Cube Gears
sketchfab
Thingiverse offers numerous variations of this toy (https://www.thingiverse.com/search/page:1?q=CUBE+GEAR&sa=). I designed my own version, basing it solely on the concept. The gears themselves are standard bevel gears, modified with precise cuts.
Download Model from sketchfab
With this file you will be able to print Cube Gears 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 Cube Gears.