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About This Portfolio

This is a listing of all the kinetic sculptures I have created since 1975. It is an archive of historical and current work. Most of these are no longer available for purchase because they were created in limited editions. Go to the Current Works page to see sculptures still available for purchase.

You will find photographs, possibly videos, and much more information on many of the sculptures by clicking on the "Click to read more..." link. I have limited information on many of the sculptures from the early years. They were created before video cameras!

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Variation Fractal

• Limited Edition of 9 
• Size: 50"h x 52"w x 7"d  
• Run Time: 16 Hours  
• Variation Fractal © 2004
• Sold Out
Variation-Fractal Kinetic Sculpture Directions 


About Variation Fractal


Variation-Fractal is the final design of the 2004 Variation series. In this piece I've been exploring the "reverse gear" effect that occurs at the center of the upper wheel assembly. I experimented with a number of forms before settling on the spiral form. I liked the way the "reverse gear" constantly changed form through the period of the motion. 

My daughter Karen named this piece almost immediately after seeing it. I thought the name was a good fit even though I was not thinking of fractals when I was designing it.

The Variation series is the result of my continued exploration in the world of kinetic patterns created by six overlapping wheels that orbit a common center. Each orbiting form is designed to hold a particular orientation by rotating in the opposite direction from its orbital motion. I first "discovered" this kaleidoscopic effect in my sculpture called Rhapsody, took it a step further with Quark Cotillion and got serious about exploring this effect with the Variation series. Fractal is the sixth sculpture in this series

Reader Comments (2)

Another amazing piece, David! I particularly love the patterns created by this one. Keep up the good work! -Dug

February 17, 2013 | Unregistered CommenterDug North

Thanks Dug. You seem to be keeping busy as well. Side note here to readers. You should check out Dug North's website here: He creates noteworthy automata sculptures which he shares at the site along with construction techniques. He also writes a blog which specializes in Automata and shares a remarkable set of links and information for anyone interested in kinetic sculpture. It is located here:

March 8, 2013 | Registered CommenterDavid Roy

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