3D printed sundial displays the time digitally

This product is pretty cool and is so intricate that it could only be made on a 3D printer.  The light shines through the cracks that line up with the appropriate chambers to show the time.  Talk about a precision. I've heard about sundials being accurate to about 30 minutes, but this is amazing.  

 

 

 Check out the video here.

https://www.youtube.com/watch?v=78I-A7ikXYU

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