Tensegrities are an attractive structure that can be built with rods and string or wire. The term is Buckminster Fuller’s combination of “tension” and “integrity”, though Fuller probably did not invent the concept. Having seen a coffee table that used a tensegrity as a base, I decided to see if I could make a similar table, only out of scavenged materials (scavenging seems appropriate in these crummy economic times!).
To make your own tensegrity table, molecular biomechanics professor Dr. William H. Guilford has some very nice step-by-step instructions here. My version is slightly different, but frankly Guilford’s design is probably more stable. I used some electrical conduit tubing left over from remodeling the house, some rope and a stop sign that I found laying in a driveway (note the “anarchy” graffiti – is that “stop anarchy” or a pro-anarchy statement?). Putting the tensegrity together was a bit more time consuming and frustrating than I expected, but once I got my head around the geometry of the concept and learned how to tug the rope, my slightly wonky scrap tensegrity miraculously seemed to assemble itself.
Tensegrities make a nice project for using up short scrap materials and can be stacked to form a tower. An example of a very tall tensegrity structure is sculptor Kenneth Snelson’s “Needle Tower”, installed at the Hirshhorn in Washington D.C. While more of a traditionalist when it comes to architectural forms, tensegrities make a nice addition to the Hoemgrown Evolution design vocabulary and I’m contemplating a tensegrity bean trellis for the backyard . . .