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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!

List of All Sculptures
« Zephyr | Main | Meander »


• Limited Edition of 150  
• Size: 22"h x 19"w x 6"d  
• Run Time: 2 Hours  
• Vortex © 1995
• Sold Out
Vortex Kinetic Sculpture Directions 

About Vortex


Vortex is a small sculpture that creates some fascinating patterning effects. The two overlapping wheels turn in opposite directions at the same rate of speed. During one phase of the motion, the pattern appears to collapse and shrink in upon itself. The wheels then slow and reverse direction giving the perception of a growing and expanding form. 

The drive mechanism is one I developed many years ago and have used extensively. It's very quiet and reliable. In this version I've "split" the pin wheel into two parts and use a smaller drive pulley between them. This extends the run time to nearly 120 minutes. 



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