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Old 03-18-2016, 01:37 PM
JohnGay JohnGay is offline
Join Date: Mar 2016
Location: Melbourne, Florida
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4 D Optical Illusion

This 3D piece, actually 4 of these 3D pieces go together to create a 4 dimensional optical illusion similar to a Penrose Triangle.

When you fold these, fold 2 inside-out so they are mirror images of the other two.

I also have several of these 3D printed.


John Gay
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