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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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Saturday
Sep012012

Jamboree

One-of-a-kind  •  Size: 65"h x 45"w x 20"d  •  Approx. Run Time: 10 Hours 
Price: $Sold  •  Jamboree © 2010  •  Sold  •  Jamboree Kinetic Sculpture Directions

 

About Jamboree

 

With Willow Wind, my first large "off the wall" kinetic sculpture, I explored the additional space using many layers. Jamboree is a further exploration of this space by breaking patterning wheel forms out of the plane of motion. I built two large wheels with arc shaped spokes that ballooned outward. My goal was to create motion patterns that changed as the viewer changed perspective. I sketched up the idea on the Mac using Adobe Illustrator and then converted those drawings to 3D and animated them using a program called Strata Design 3D. The animation showed that the patterns did indeed change with viewing angle but animations on a 2D screen, even 3D ones, don't always "work" in the real world.

The actual construction of the wheels turned out to be quite a challenge. Balance is critical with this type of mechanism and the wheels had to be designed so that the arc forms' mass was nearly perfectly balanced by the shapes on the other side of the wheel. I do most of this work using a computer program called Working Model which I use to calculate the center of mass of a complex "system" like this wheel followed by some good old fashioned trial and error!

I was thrilled to find that the virtual and real worlds yielded the same results. The patterns do shift dramatically as one walks around the sculpture. A side benefit that I had not realized in the virtual world is that the mass of the wheels would lead to slow graceful motion and very quiet operation.

Comments via YouTube:

"Your work is amazing, I would love to one day be able to afford one of your amazing pieces. - 5.4.10 - T

Comments via Website:

"Jamboree is so beautiful. I love kinetic art in any form, but all your works are my favorites. You are truly a master of beauty and movement. Thank you creating such masterpieces for the world." - 4.29.10 - J.P

 "Thanks for the update. That is an excellent piece! Really impressive and outside of what David normally does. Wow." - 4.29.10 - S.B. - Farmington, NY

"So wonderful, good job:)." - 4.29.10 - G.

"Thanks for sharing Jamboree, another "magical" work of art. You are truly amazing and your creations are so beautiful. This one is wonderful and you continue to  make the world an even more beautiful place than it already is - thank you." - 4.30.10 - Jim Melotti

"So I came across your work on YouTube while researching fractals. Wow. What great work you do. Looking forward to seeing new work. I will definitely share this site with my friends at college." - 5.5.10 - Terri

"Dare I say that your art moves me. I cannot express truly what delight and admiration that is felt in looking at your work. So, at this moment, I will simply say kudos, kudos, kudos." - 5.6.10 - Gordon Dowton

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