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Impossible tribar 3d printed

Not a Photo

Impossible tribar 3d printed
Impossible tribar 3d printed

Not a Photo

Impossible tribar 3d printed
Impossible tribar 3d printed

Not a Photo

Impossible tribar

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  • 3D printed in White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
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  • This product is intended for mature audiences.

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Product Description

This model is also called the 'Penrose Triangle'. The configuration is impossible to create in 3D, using full cubes (with all 6 sides intact for each cube). What you are looking at is an optical illusion, where only 3 adjacent-to-each-other walls from each cube are included, and the inside concave corners masquerade as external convex ones :)


Also, I used this model for the cover image of my 2004 book, 'Rendering for Beginners': http://smartcg.com/tech/cg/books/RfB/home/index.html


The book cover is mentioned in this article, which also has more info+links regarding the tribar model: http://mathworld.wolfram.com/PenroseTriangle.html


And, here are my alternate versions of the tribar: http://www.shapeways.com/model/672155/penrose-tribar-with-stand.html and http://www.shapeways.com/model/670170/impossible-tribar.html.

What's in the Box
Impossible tribar
White Strong & Flexible
6.4 cm
5.5 cm
1.6 cm

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