Octo Sphericon
thingiverse
People often build an octahedron with a rod. They attach one end to something stable, letting the other end rotate freely. It will be constructed soon.
Download Model from thingiverse
With this file you will be able to print Octo Sphericon 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 Octo Sphericon.