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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
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One-of-a-kind  •  Size: 61"h x 53"w x 8"d  •  Run Time: 10 Hours 
Cumulus © 2010 •  Sold  •  Cumulus Kinetic Sculpture Directions


About Cumulus


This sculpture is called Cumulus because the final form reminds me of the large puffy clouds we see often in the summer.

I didn't start out with the idea of creating a cloud form sculpture. I wanted to create a sculpture with two independent but connected floating forms that would interact visually. I started working with the "bird" shapes I've used in previous floating motion pieces like Journey and Falcon but found I wanted more overlap events to happen so the simple horizontal bird curve evolved into a horizontal curve inside a large circle. This heavier "bird" form required a shape with considerably more mass to balance it. I played with lots of shapes before settling on the arc of rings. I liked what I was seeing in the interaction between the ring forms and how it complimented the more unpredictable motion of the circular birds. It wasn't until I had actually built the sculpture that I saw the cloud connection.

The lower left hand part of the sculpture is where the power is stored in a pair of constant force springs. All of the lower assembly wheels only move when the main motion part of the sculpture needs a push. The actual moment of the push comes when the entire motion assembly stops moving in a clockwise direction and starts to reverse. This triggers the mechanism to give it a push to restart the sequence.

Comments via Website:

• I own Tangle.... But this is one of the nicest I have seen you produce. Still like my Tangle the best of all. - 8.31.10 - Tim Boone

• Brilliant new scupture! I love clouds and constantly take photos of them as I am flying during my travels. I saw the image immediately. - 8.31.10 - Shirley Mullally - Memphis, TN

Reader Comments (2)

Love this one. Hate to see that it was "one-of-a-kind." Would give anything to have had the opportunity to buy this. Any chance you will revisit this one in the future? I love the clouds and the birds!

August 2, 2013 | Unregistered CommenterItacal

Always revisiting the bird theme. I just love that motion. The clouds - not so sure. But keep visiting you never know.

August 3, 2013 | Registered CommenterDavid Roy

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